I Have Stared Death

In The Face, But He Blinked First..

Tuesday, March 25, 2014
The muzzle of a Challenger 2.

By Tactical Mulisha in
0


Challenger 2 is an advanced main battle tank built by BAE Systems Land Systems (formerly Vickers Defence Systems, then Alvis Vickers Ltd). Challenger 2 is in service with the British Army and with the Royal Army of Oman. The UK placed orders for 127 Challenger 2 tanks in 1991 and an additional 259 in 1994. In 1993 Oman ordered 18 Challenger 2 tanks and an order for a further 20 tanks was placed in November 1997.

Challenger 2 main battle tank development

Challenger 2 entered service with the British Army in June 1998 and the last of the 386 tanks was delivered in April 2002. Deliveries for Oman were completed in 2001. Challenger 2 has seen operational service in Bosnia and Kosovo. British Army Challenger 2 tanks were deployed on active service in Operation Iraqi Freedom.
In July 2004, the UK Ministry of Defence announced plans for a reduction of seven Challenger 2 armoured squadrons (about 100 tanks) by March 2007 and the change of role of one Challenger 2 regiment to an armoured reconnaissance regiment.
Challenger 2E, the latest development model, has been designed for the export market and is suitable for harsh environmental and climactic conditions. The 2E has been extensively trialled in Greece, Qatar and Saudi Arabia.

Challenger 2 armament

Challenger 2 is equipped with an L30, 120mm rifled tank gun from BAE Systems Land Systems (formerly RO Defence). In January 2004, Land Systems was awarded a contract to develop a new smoothbore 120mm gun for the British Army Challenger tanks. Under the contract, a Challenger 2 has been armed with the Rheinmetall L55 smoothbore gun, as fitted on the Leopard 2A6 tank, and began firing trials in January 2006.
The L30 gun is made from electro-slag refined steel (ESR) and is insulated with a thermal sleeve. It is fitted with a muzzle reference system and fume extraction. The turret is capable of 360° rotation and the weapon elevation range is from -10° to +20°.
There is capacity for 50 120mm projectiles, including armour-piercing fin-stabilised discarding sabot (APFSDS), high-explosive squash head (HESH) or smoke rounds. The L30 gun can also fire the depleted uranium (DU) round with a stick charge propellant. With the DU round, the L30 is part of the Charm 3 gun, charge and projectile system.
The gun control is provided by an all-electric gun control and stabilisation system from BAE Systems. Challenger 2 is also equipped with a Boeing 7.62mm chain gun, which is located to the left of the main tank gun. The loader has a 7.62mm GPMG L37A2 anti-air machine gun, mounted on the cupola.

Self-protection

The turret is protected with second generation Chobham armour. A nuclear, biological and chemical (NBC) protection system is located in the turret bustle. On each side of the turret are five L8 smoke grenade dischargers, from Thales AFV Systems Ltd (formerly Helio Mirror Company).
Challenger 2 can also set a smoke screen by the injection of diesel fuel into the engine exhausts.

Fire control and observation

The digital fire control computer is produced by Computing Devices Company (now General Dynamics – Canada). General Dynamics UK is supplying the platform battlefield information system application (PBISA) for the British Army Challenger 2 tanks. PBISA integrates the commander's display, inertial navigation system, digitisation processing computer and driver's display panel. Land Systems is responsible for system integration and some of the software. PBISA entered service in December 2005.

The commander has a panoramic VS 580-10 gyrostabilised sight from SAGEM (formerly SFIM Industries).British Army Challenger 2 tanks are being fitted with the Bowman tactical, digital communications system. Prime contractor for Bowman is General Dynamics UK. Bowman provides secure voice and data communications and automatic location of units. Challenger tanks fitted with the system were deployed to Iraq in early 2006.
A laser rangefinder is incorporated into an intermediate assembly. Elevation range is +35° to -35°. The commander's station is equipped with eight periscopes which provide 360° vision.
The thermal observation and gunnery sight II (TOGS II), from Thales (formerly Pilkington) Optronics, provides night vision. The sensor is based on UK TICM 2 common modules. The thermal image, with magnification ×4 and ×11.5 is displayed in the gunner's and commander's sights and monitors. The gunner has a Thales Optronics stabilised Gunner's Primary Sight, consisting of visual channel, 4Hz laser rangefinder and display. The laser rangefinder has a range of 200m to 10km.
The driver is equipped with an image-intensifying passive driving periscope (PDP) from Thales Optronics, for night driving.

Challenger 2 lethality improvement programme

The Challenger lethality improvement programme aims to upgrade the main gun of Challenger 2 from its current 120mm L30A1 rifled gun to the 120mm Rheinmetall L55 smoothbore gun currently used by the Leopard 2 A6.
The use of a smooth bore allows Challenger 2 to use more lethal rounds developed in Germany and the US.

Propulsion

The Challenger 2 has a 12-cylinder, 1,200hp Perkins Caterpillar CV12 diesel engine and a David Brown TN54 gearbox, with six forward and two reverse gears. Second-generation Hydrogas suspension and hydraulic track tensioner are fitted. The maximum speed by road is 59km/h and 40km/h cross country. The range is given as 450km by road and 250km cross country.


Challenger 2E has a new integrated weapon control and battlefield management system, which includes a gyrostabilised panoramic SAGEM MVS 580 day / thermal sight for the commander and SAGEM SAVAN 15 gyrostabilised day / thermal sight for the gunner, both with eyesafe laser rangefinder. This allows hunter / killer operations with a common engagement sequence. An optional servo-controlled overhead weapons platform can be slaved to the commander's sight to allow operation independent from the turret.

Challenger 2E

The powerpack has been replaced with a new 1,500hp Europack with transversely mounted MTU 883 diesel engine coupled to Renk HSWL 295TM automatic transmission. The smaller but more powerful engine allows more space for fuel storage, increasing the vehicle's range to 550km.

Armoured vehicle support transformation (AVST) programme

In September 2009, the UK MoD Investment Approvals Board gave the go-ahead to BAE Systems to frame a scheme for the Challenger tank fleet that would reduce costs by over 10%. The scheme also be extends to other armoured vehicle fleets in service with the British Army under the armoured vehicle support transformation (AVST) programme. The key objective of the scheme is to provide improved availability of spare parts and technical support to the UK MoD's fleet of armoured vehicles.
A fleet of Titan and Trojan engineer tanks, a CRARRV recovery vehicle, a Challenger main battle tank and the driver training tank are covered under the contract.
In phase one, BAE Systems implements improvements in areas such as needs-based maintenance, base repair and overhaul process, obsolescence management, and technical advice and guidance on key sub-systems.
In phase two, BAE Systems focuses on integration of the defence lines of development in areas including user and trainer incentives, integration of material, manpower and facilities planning and better fleet management.
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An F-35C with its wing tips folded in front of a moonrise.

By Tactical Mulisha in
0

F-35C CATOBAR (Catapult Assisted Take Off Barrier Arrested Recovery) is an advanced fifth generation fighter carrier variant designed and being manufactured by Lockheed Martin Corporation for the US Navy and the UK Royal Navy. It will be the first stealth bomber aircraft in the fleet of the US Navy. It will supersede F/A-18B/C and A-6 Intruder, balancing the 480 F/A-18E/F aircraft.
The US Navy awarded a $39.3m contract to Lockheed Martin in April 2012 to overhaul the air system design and testing for F-35C fighter aircraft. Work on the modernisation is expected to be completed by October 2014.

F-35C carrier variant design

The critical design review of the F-35C was completed in June 2007. The F-35C is designed by modifying the standard F-35 joint strike fighter (JSF). The design modifications include larger wings and tail control surfaces to meliorate low-speed control, and larger wing area to minimise the landing speeds while maximising range and payload capacity. The aircraft is designed to launch from the flight deck of a large aircraft carrier through steam catapult and can recovered by using a tailhook arrestor.

F-35C Joint Strike Fighter development

Tanker qualification trials on the F-35C with a series of air-to-air refuelling behind the US Air Force KC-10 tanker aircraft were carried out in January 2001. The first F-35C was rolled out from Lockheed Martin's Fort Worth Facility, Texas in July 2009. The aircraft carried out drop testing at Vought Aircraft in April 2010. The maiden flight of the aircraft took place in June 2010.
The F-35C accomplished supersonic speed in March 2011 during a flight test at Naval Air Station Patuxent River. The first steam catapult launch of the aircraft was completed in July 2011.
The aircraft integrated with an Electromagnetic Aircraft Launch System (EMALS) was flight tested for the first time by the US Navy in November 2011.
The first formation testing was conducted at Naval Air Station Patuxent River in April 2012.
The shipboard testing is expected to be carried out in 2013. The aircraft is expected to enter service in 2015.

F-35C features

The F-35C will feature a refuelling probe on the right side of the front fuselage to carry out mid-air refuelling during combat missions. It will be fitted with a tricycle type retractable undercarriage comprising two single-wheeled main gear legs and a two-wheeled nose gear.
Most of the features of F-35 JSF such as weapon loads, cockpit layout, countermeasures and radars are retained in the F-35C variant.

Weapons

The F-35C will be armed with a 25mm GAU-22A series cannon which can fire munitions at the rate of 220 rounds per gun. It will comprise six hardpoints, including four underwing and two internal weapon bays. It can carry up to 8,160kg of payload.
The aircraft will also be fitted with AIM-120 AMRAAM medium range air to air missile, air to surface guided missiles, two GBU-31 JDAM guided bombs, eight GBU-38 bombs and munition dispensers.

Propulsion

The F-35C will be powered by a single Pratt & Whitney F135 turbofan engine rated at 125kN of dry thrust. The engine can generate 191.3kN of thrust afterburner. It is derived from F119-PW-100 turbofan engine. It is equipped with full authority digital engine control, a gearbox, and health and usage monitoring system.
The engine is 5.5m long and 1.3m in diameter. Its inlet diameter is 1.1m.

Performance

The F-35C can fly at a maximum speed of 1,960km/h. The combat radius and maximum range of the aircraft will be 1,100km and 2,200km respectively.

Orders and deliveries

The US Marine Corps will procure 80 F-35Cs under an agreement signed with the US Navy in March 2011. The USMC will share their F-35Cs with Navy Carrier Air Wings.
The UK Ministry of Defence (MoD) announced in October 2010 to procure approximately 50 F-35Cs for deployment with Royal Air Force and Royal Navy. The deal was, however, cancelled in May 2012 as the MoD found F-35B to be a cheaper alternative.
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The cockpit of a AH-1Z Viper.

By Tactical Mulisha in
0

The AH-1Z Viper is an attack aircraft developed by Bell Helicopter of Fort Worth, Texas. The Viper is a twin engine helicopter that has been designed based on the Cobra line of attack helicopters that have been in service with the U.S. Marine Corps since the early 1970s. The Viper is also called the "Zulu Cobra" helicopter. It entered service with the U.S. Marines in September 2010. The Marines have ordered about 200 Viper helicopters and deliveries of the aircraft are expected to continue through 2019.
The AH-1Z Viper was created as part of the U.S. Marines Corps "H-1 Upgrade Program," which saw the development of the Viper attack helicopter and the UH-1Y Venom utility helicopter. Bell Helicopter won contracts to develop both the Viper and Venom helicopters and modernize the Marines’ helicopter capabilities. Bell has been working on the Viper and Venom helicopters since 1996. Similar design and shared parts between the two helicopters is expected to reduce long-term maintenance costs.
Precision Weapons
The Viper attack helicopter features state-of-the-art avionics, sensors and weapons systems. The aircraft is able to locate targets at greater distances and attack them with greater precision than previous attack helicopters. Weapons on the Viper include a 20 millimeter M197 gatling gun, Hydra 70 rockets, AIM-9 Sidewinder air-to-air missiles, and AGM-114 Hellfire air-to-surface missiles.
The two crewmen in the Viper helicopter are equipped with high-tech sight and display systems mounted into their flight helmets. This system provides the pilot and co-pilot with night vision, infrared sighting, binocular display and video imagery.
The Viper has also been designed to have better survivability than previous attack helicopters. The rotor blades are made with durable composites that better withstand ballistic attacks. The Viper can travel at a maximum speed of 255 miles per hour, and has a cruise speed of 185 miles per hour. And, the Viper can climb at nearly 2,800 feet per minute.
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Toxic Berserker

By Tactical Mulisha in
0

-RMJ's Berserker, an all-steel integral design, is based on a 9th century Viking wood axe
-Length - 15 inches
-Weight - 40 ounces
-Solid 4140 Chrome-moly steel
-CNC Machined
-G-10 FR4 3-D machined handle scales (We no longer offer the micarta scales featuring runes)
-Differentially heat treated
-Bottom-eject Kydex scabbard with choice of belt loops, shoulder strap or RUMP Molle platform included
-Variety of handle color options (Swatches above)
-DuraCoat finish
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Wilson Combat CQB

By Tactical Mulisha in
0

The CQB Full Size Pistol is the standard-bearer for our CQB family of pistols, and remains our most popular model. A thoroughly modernized version of the original 1911 design by John M. Browning, it is built in the original style but delivers the quality, reliability, and accuracy modern shooters demand - and is backed by our unmatched promise of performance and customer satisfaction.
Whether your anticipated use if for defense, competition, or daily carry, why not experience the confidence that you will have with a Wilson Combat CQB on your side?
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Wilcox Weapon Video Display WVD with Mini Modular Thermal Package

By Tactical Mulisha in
0

The Wilcox Weapon Video Display (WVD) P/N 35600G01 is a modular thermal sighting system that mounts to the MIL-STD-1913 Rail on a weapon.  This modular integrated system provides thermal image output to an LCD display for CQB applications.  A Thermal Reflex Sight allows for nighttime thermal viewing of targets.  An optional side view camera module provides viewing of potential targets and obstacles around corners. A quick-change power supply module powers the various devices in the system.  Depicted above is the WVD with an optional OASYS Thermal Sight, Bipod on a M4

Features:

Compatible with the Wilcox OASYS Clip-On Thermal Sight and the BAE Thermal Sight

Wilcox Go Mount allows for quick mounting to a MIL-STD-1913 Rail

Side View Camera Module for viewing of potential targets and obstacles around corners

Flat Matte finish for covertness

Specifications:

Material:
Light Weight Aerospace grade material

Display Features:
White or Black Hot
2X Digital Zoom
Multiple Crosshairs
Auto Shutoff

Display Resolution
320 x 240 pixels
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“The “Porsche” of AKs…”

By Tactical Mulisha in
0

SIG 556 SWAT Patrol

Viable Option To The AR And AK.

When it comes to choosing an assault-style rifle, there is little doubt that the US consumer is fixated on the AR platform. As of late, the AK series seems to be gaining a grudging acceptance as well. Each rifle type has burgeoning ammunition and after-market accessory sales to support this statement. Both also have stereotypes that are not necessarily true. AKs are more accurate and have better ergonomics when viewed through a fighting rifle lens. ARs are much more reliable than most give them credit for. It’s easy to forget there are other viable options outside the iconic AK and AR platforms. In fact, the rifle design that has become one of my favorites blends aspects from both the AR and AK, combined with unique characteristics of its own. I am talking about the SIG SAUER 556, specifically the SIG556 SWAT Patrol model.
A little background on where the SIG556 design originates. Certain weapons can morph into legendary status in consumer minds. This is often initiated by restricted supply of the weapon, which only serves to exacerbate the desire to possess. This can be caused by limited production, or more likely onerous import restrictions that have been imposed on the market by the federal government. The SIG 550/551 series of rifles is definitely such a weapon. A quick search of forums, books, anecdotal reports and articles shows the SIG 550/551 labeled as the “World’s Best Assault Rifle,” which only heightens an individual’s desire to possess such a widely-acclaimed weapon. Many in the US market waited on SIG SAUER’s entry into the “black” rifle market. The hope was to get a civilian-legal version of the legendary Swiss Army SIG 550 series of rifles. SIG SAUER designers chose a compromise in the form of the SIG556. The SIG556 trigger housing was altered from the 550 series to accept AR-15 magazines. Overall, this is a sage decision considering the growing number of AR-15 magazines existing in the US. Many would find the need to invest in a different magazine type a negative, considering existing low price and availability of AR magazines in the US. The SIG556 avoids this by being compatible with AR magazines. However, the proven 2-position, adjustable gas-piston operating rod system found on the 550 series was maintained in the
556’s design.

Some History

The SIG SG 550/551 design dates back to the late 1970s, as the Swiss sought to replace their Stgw 57 battle rifle. From the beginning, specifications highlighted the desire for a modular design with various model variants expected, such as compact and marksman-type weapons. The SIG SG 550 (20.8″ barrel) and the SG 551 (14.3″) carbine version were adopted in 1983, put into production in 1986, with final widespread introduction into the Swiss service in 1990. The SG 550 series was chambered in the Swiss equivalent of the 5.56mm in lieu of the earlier 7.5mm round and the experimented-with 6.45×48. The SG 550/551 functions via long-stroke adjustable gas-piston with a rotating bolt/carrier group are very similar to the AK’s in configuration, with Swiss refinement and tweaks. For example, the SG 550 barrel is screwed into the receiver, compared to the AK’s barrel being “pressed” into a front trunnion. The SIG recoil spring is located in front of the action, versus AK’s spring being behind the bolt carrier. A gas cylinder with a gas channel directs gasses tapped from firing a cartridge to a piston head that pushes the piston and bolt carrier rearward, working the action. The piston moving backward removes its alignment with the gas channel, cutting off the supply of gas acting on the piston. Surplus gases are directed out of an exhaust port. This system eliminates the “over”-gassed characteristic inherent in the AK, making the 550/551 run smoother and thus more accurately and less prone to wear over its service life. Accuracy requirements were stringent with the SG 550/551, reflective of the Swiss emphasis on marksmanship by its citizen soldiers. Literature discovered during research of this article indicated random SG 550 rifles tested before leaving the factory had to deliver no greater dispersion than 4.3″ windage and 2.8″ elevation groups at 300 meters from the bench using Swiss GP90 service ammunition.
The SG 550/551 gas system is adjustable via a 2-position valve. One setting is for normal operation and the second is for more adverse conditions, stemming from fouling or weather conditions. Another important nuance offered in the SG 550 series over the base AK is the adoption of a hinged lower/upper receiver style. This allows for a permanently-attached diopter drum rear sight via soldering at the rear of the receiver, compared to the AK’s sight location in front of the action due to the removal of the dust cover. A longer sight radius translates into more accurate fire placement. Another benefit that may not have been fully appreciated in the 1980s is the easy mounting of optics on rails incorporated into the upper. There’s hardly a battle rifle in use today that doesn’t sport a red dot or low-powered optic of some type. Lastly, the folding stock on the SG 550 provided proper cheek alignment no matter if a soldier was prone, kneeling or standing; this is not an easy accomplishment and a credit to the designers. In summary, the Swiss got the SG 550/551 design right, as is evident by the acclaim and positive reports it has received over decades of use by various units and armed services. These features are transferred over to the US-made SIG556.
The SIG operating rod system is often referred to as the “Porsche” of AK designs due to
the tighter tolerances and better workmanship found in SIG SAUER weapons compared to other
manufacturers using the AK as a basis of design.

Best Of Two Guns

The SIG SAUER 556 rifle has always struck me as a valid option to both AR-15/M16 and AK platforms since its introduction in the US. While the SIG556 product line accepts AR-15/M16 magazines, it is closer to the Kalashnikov in actual operating method. The SIG operating rod system is often referred to as the “Porsche” of AK designs due to the tighter tolerances and better workmanship found in SIG SAUER weapons, compared to other manufacturers using the AK as a basis of design. The gas-piston operating system keeps the action cleaner, cooler and overall more reliable. It also allows the use of side folding stocks to reduce overall dimensions of the rifle when needed. Many will find the 556’s ability to accommodate a side folding stock (unlike the AR-15) an added incentive. These are all positive attributes, especially considering the recent rush to create gas-piston ARs because of the increased reliability factor.
Any department, individual officer or security-conscience civilian looking for an LE patrol carbine will instantly appreciate the SIG SAUER 556 SWAT Patrol rifle. The functionality of a rifle utilizing AR-15 magazines, incorporating a proven gas-piston operating rod system with a heritage tied to the legendary SIG 550, is hard to deny. The SIG SAUER 556 SWAT Patrol integrates excellent accuracy from the 16″ barrel with efficient handling and maneuverability. Thus, no matter the situation the rifle is deployed in, whether it is a rural setting with longer distances encountered or more urban requiring CQB-style tactics, the SIG SAUER 556 SWAT Patrol can satisfy
the mission.
The SIG556 SWAT Patrol features a “flat-top” upper receiver with a Picatinny rail for mounting optics or other aiming devices, combined with an aluminum quad rail fore-end that is ideally suited for mounting accessories. One unique feature of the SIG556 product line is the SIG SAUER Rotary Diopter Sight System (RDSS). The SIG RDSS with a rotary drum rear sight and front post is more substantial than most iron sight configurations. A shooter is well served by the RDSS if an optic device is not utilized or goes down. The RDSS stems from the 556’s SIG 550 heritage and is befitting a service rifle, which relies solely on its open sights to engage targets. However, recent trends in fighting rifles would indicate the design intent for the SIG556 SWAT Patrol is to mount some sort of low-powered magnified optic or red dot as the primary sighting tool. Thus the RDSS mounts on the Picatinny rail in lieu of the permanent nature of the original SG 550/551 diopter sight.

Thought-Out Design

The SIG556 SWAT Patrol chambered in 5.56 NATO weighs 7.5 pounds, measures 36″ with the stock unfolded and 27.1″ folded. The folding rear stock is an immediate advantage compared to a traditional AR rifle, with its buffer tube preventing a folding-stock option. The A2 flash suppressor uses a standard .5×28 thread pattern for mounting. SIG SAUER installed a 2-stage trigger and ambidextrous safety on the 556 SWAT Patrol; they also chose to use aircraft-grade aluminum alloy forgings for the redesigned trigger housing. This saves weight in the 556 series compared to the 550 series. The SIG556 SWAT Patrol has 16.25″ military-grade, cold-hammer-forged barrel with 1:7″ twist. The SIG556 SWAT Patrol benefits from further weight saving with SIG SAUER’s decision to use a shorter gas piston system compared to its other SIG556 models. The shorter gas piston is similar in length to the piston featured on the SIG556 pistol variants. Think of the standard AK-length piston compared to what is found in an AK Krinkov variant.
Over a pound is shaved from the 556 SWAT Patrol due to this shorter gas piston and resultant shorter forearm furniture. For many, this translates into a handier rifle that is not so front heavy. SIG SAUER accepts that rails are here to stay on the modern fighting rifle, because they allow for a user to configure the rifle as they see fit. The fact SIG decided to equip the 556 SWAT Patrol with a compact fore-end quad rail gives a nod to the realization that high-intensity flashlights and vertical forward grips serve a role and have a place on a fighting rifle. However, the want for full-length quad rails (which adds weight and unbalances the rifle by making it front heavy) is resisted. The ability to mount infrared laser designators, night vision devices or other sorts of tactical hardware is not something most of us require in a fighting rifle. If this capability is needed, there are other rifles in the SIG SAUER lineup to suit your needs. The SIG556 SWAT Patrol’s 7.5 pounds of weight and minimal barrel length gives it great balance and handling.
The 556 SWAT Patrol upper hinges open with bolt group and gas piston removed (per provided directions), and the trigger group is exposed in the lower. Barrel/chamber cleaning is easily accessible, as is the bolt group and piston-operating rod. Overall, cleaning of the SIG556 takes little time, with the bolt group needing little more than a wipe off and re-lubrication. The Nitron finish on the upper and hard coat anodized aluminum lower keeps exterior concerns to a minimum. SIG SAUER is now using a folding stock reminiscent of the design found on the classic SIG 550, compared to other types used on early 556 variants. The factory-folding stock once deployed is very sturdy and doesn’t exhibit any side-to-side or up-and-down wiggle. One interesting side note is the upper of the SIG556 bears the serial number of the weapon compared to the lower of the AR-15. I took advantage of this nuance by switching out the factory lower with one that featured a non-folding LMT SOPMOD stock ala the AR. This was derived from a previous SIG556 SBR project converting a 556 Pistol into a SBR. As alluded to at the beginning of the article, the SIG556 is a favorite platform. This allowed for comparison of the two stock designs. The use of the other SIG lower with LMT SOPMOD stock offers the benefit of adjustable length-of-pull so a user can find what best suits individual needs, especially if wearing body armor.
Anyone looking for a hard-hitting, high-capacity carbine would do well by picking
the SIG556 SWAT Patrol, especially if ammunition is selected wisely. Short work
was made of an EVTC target of opportunity with this SIG rifle.

Combat Optics

It was decided to take full advantage of the SIG556’s flattop upper by installing different optics for testing. A Trijicon ACOG 3.5×35, model TA11H with green horseshoe reticle was mounted. I also decided to mount a Leupold Mk4 CQ/T for testing. Both Trijicon and Leupold’s reticles offer the capability to engage multiple targets in rapid sequence (unlike open sights), and at same time provide adequate accuracy out to a couple hundred yards. This is made possible by superimposing an aim point on the target; this does not totally obscure the target because the reticle dot is not so large. As many “maturing” shooters can attest, the single-focus plane with the red dot is easier to shoot accurately than coordinating front and rear sights. The 5.56/.223’s flat trajectory aids in making center mass hits out to 300 yards, without having to compensate excessively for bullet drop.
The 556 SWAT Patrol was evaluated at Echo Valley Training Center (EVTC). The private facility has multiple 100-yard enclosed bays and a 360-degree drive-in range all capable of handling numerous students conducting square range drills, or more dynamic/fluid types of training. In conjunction with the individual training bays, EVTC features multi-stepped target berms that are strewn with reactive steel targets from TacStrike, fluid-drained automobile, and moving targets at ranges varying from 100 yards out to 350 yards. Range T&E with the SIG556 SWAT Patrol followed an established protocol for combat rifles. After a quick sight-in of the SIG RDSS open sights, evaluation commenced with a function test involving firing several magazines in rapid succession at various TacStrike steel man targets and vehicles. While not unique, this is a good way to establish a baseline for reliability. This was done with the RDSS open sight to offer a chance of familiarization with the irons. While definitely a superior iron sight in terms of precision compared to most other types, the RDSS is large and had the tendency to obscure my field of view when engaging targets at
CQB distances. I found the RDSS could be left on the rifle and serve as backup iron sights if desired; co-witnessing with the RDSS isn’t likely, but it depends on optic chosen by the end user.

Realistic Evaluation

Further range testing of the SIG556 SWAT Patrol consisted of repeating numerous drills and exercises experienced via training with Norone Corp., Jason Falla’s Redback One, Storm Mountain and Tactical Response. Firing while moving, as well as behind cover, reloading drills, transitions between shoulders depending on cover orientation and engaging multiple targets arranged around “no-shoot” targets all helped put the 556 SWAT Patrol through its paces. The 556 SWAT Patrol’s minimal recoil and handling characteristics allowed for fast double and triple taps on selected targets, especially at CQB distances. The Trijicon assisted in engaging targets at close distances while the green horseshoe reticle was easy to pick up rapidly. At same time, it allowed for more than enough accuracy out to a couple hundred yards, due to the green reticle superimposing an aim point on the target while not totally obscuring the target.
Magazine change drills turned out to be a combination of AR and AK manipulation techniques. The SIG556 SWAT Patrol does have a bolt hold-open feature after the last round is fired. So it was possible to slam a fresh magazine home and hit the bolt hold-open lever with your left hand to chamber a round. For the occasion when a magazine was changed without the bolt being held open or training doctrine dictated running the bolt every time, the user had to resort to a couple different methods ala the AK. Either reach over or under the rifle with your left hand, work the bolt, tilt the rifle over with the right hand on the pistol grip and work action with left hand, or switch rifle over to left hand and work bolt with right hand. None of these techniques were particularly hard to master, but different from what dyed-in-the-wool AR shooters will be accustomed to.
Fittingly, the SIG556 SWAT Patrol’s trigger feel is a cross between an AR and AK. It is 2-stage as in that travel is encountered when first pulling it to the rear. However, the break comes as a surprise due to the final stage of sear release being light in nature before the round is sent. The trigger can be staged for precise shots, yet retains a measure of surety for CQB engagements. The reset is quite minimal, allowing the shooter to engage rapidly once familiar with design. A couple drills and a handful of magazines is enough to get comfortable with the operator trigger interface.
Shannon Campbell, co-founder of Norone Corporate, was on hand for some of the 556’s evaluation. Norone Corporate is a weapons and security applications training entity that began as a collaboration of former FED contractors, USMIL and active competitors who gathered a vast amount of tactical experience to bring to bare and share to specific clientele. Norone provides tactical weapons training for protection teams of FED contractors and LEO as well as for some of the largest global security providers; today, Norone has narrowed its focus to stay at mid-level and provide specific training to enhance individual skill development, making any team member an asset for any environment. With several sojourns overseas as a private security contractor, Shannon is a good opinion source. Shannon was appreciative of SIG556 SWAT Patrol’s handling and reliability.
The SIG SAUER 556 rifle is appealing as a valid option to both AR-15/M16 and AK
platforms in the US. While the SIG556 product line accepts AR-15/M16 magazines,
it is closer to the Kalashnikov in actual operating method.

Flawless Reliability

Ammunition tested with the SIG556 SWAT Patrol was a combination of Black Hills Ammunition loads, Hornady 60-grain TAP loads, Wolf Ammunition Military Classic 55-grain FMJ, Winchester 55-grain FMJ, Federal 55-grain FMJ, Federal Premium Law Enforcement 55-grain Triple Shok and 62-grain Bonded SP loads. The 556 SWAT Patrol kept all loads tested under 2.5″ at 100 yards with multiple Black Hills loads — 50-grain TSX and 77-grain Match — and produced near-MOA groups out to 200 yards. This accuracy level justifies mounting a magnified optic such as the Trijicon ACOG or Leupold’s Mk4 CQ/T, depending on intended mission. Overall, the accuracy level was more than acceptable considering the barrel’s thin .5″ profile. Accuracy test protocol consisted of five 3-shot groups with each ammunition type; group sizes were averaged. Velocity figures ranged from 2,700 to 3,000 fps over an RCBS chronograph.
Several of the more dynamic drills experienced during the T&E showed the SIG556 SWAT Patrol at its best; it showed unrelenting reliability even when scorching hot after multiple magazines fired consecutively. The SIG SAUER 556 SWAT Patrol’s gas piston operating rod system proved its worth in keeping the bolt carrier group cooler and cleaner compared to direct impingement AR rifles. I purposely neglected to clean the 556 SWAT Patrol over the course of the review, and only kept the rifle lubricated. At no point did I feel the need to adjust its gas system into its second position to compensate for a dirty rifle. The 556 Patrol’s gas piston steadily ejected brass briskly forward (briskly being an understatement) and to the right several feet away from the firing point.
While the SIG556 SWAT Patrol isn’t going to displace the AR or AK in terms of popularity based on pure numbers sold, its owners will be well served by its capabilities. A certain satisfaction will be gained by knowing the SIG556’s heritage and how it incorporates and enhances features from both AR and AK; even better, the 556’s own nuances benefit those who choose to use it.
By Todd Burgreen

Source : https://gunsmagazine.com/sig-556-swat-patrol/

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