The Piston Upper Receiver Group Enhanced (PURG E) was created in direct response to problems identified by the warfighter, from use of the newly adopted M 855 A 1 ammunition The PURG E was developed from the ground up, a complete upgrade and redesign, capitalizing on direct feedback from end users . The PURG E retains the tried and true proprietary, self regulating, short stroke gas piston system This system greatly reduces fouling and gas blow back into the face of the shooter, as well as providing unparalleled performance and durability under the harshest conditions found The system has been engineered and manufactured to integrate Mil Spec lower receivers while providing a cleaner, more reliable and durable operating system.


Weight: 4.2 lbs

Length Minimum: 23.5” , 25.5 ”

Height: 7 ¾″ Rear sight to bottom of pistol grip

Barrel Length: Barrel Length 12.5
14.5” Cold Hammer Forged
All barrels come standard with pin over
the extractor

Mode of Fire: Safe, Semi Automatic, Full Automatic

Feed Mechanism: Magazine 10/20/30/60 Round


Caliber: 5.56 x 45 NATO (M855A1)

Operating system: Short stroke gas piston and push rod system Rated action spring (Included) Hydraulic recoil damper (Included)

Bolt system: Enhanced rotating bolt featuring added material as well as radius where it counts most. The bolt also features a driving band ride surface and lubrication groove which provides far less flex than a standard ring style bolt configuration. We have designed a new ultra lightweight bolt carrier which despite its weight savings has incredible durability as well as greatly reduced unlocking and recoil impulse. These
enhancements make the PURG E a far more
effective tool in the hands of the warfighter.
All bolt and carrier components are
compatible with select fire systems
Coatings: Bolt/Extractor Titanium Nitride,
MPI tested Carrier Black Nitride


Upper Receiver: Flat Top with M4 feed ramps. CNC Machined of 7075 T6 Aluminum, Type III
Hard Coat Anodized

Muzzle Thread: ½” X 28

Muzzle Device: Flash Hider,  Suppressor QD Flash Hider and muzzle brake options

Trigger: Single-stage, Two-stage options

Forend:  Fixed 12 O’clock rail, with 2” M-Lok Picatinny at 3/6/9 O’clock positions

Suppressor: Mini and Full size options

Backup Sights: Polymer and steel options

Day Optic: Red Dot, Holographic, Fixed Power,1/4, 1-4 x24, 1-6 x24, 1-8 x24

Sling attachment: Multiple QD sling attachment points

*Note Mil Spec bolt as well as firing pin, extractor, ejectors and cam pin are all compatible in the PURG E system as a
back up solution in case of loss or damage during deployment or urgent replacement situation

*contact for full list of available options/variants

Contact SWORD

+1 (775) 343-1090


610 E. Glendale Ave, Sparks Nevada 89431


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