PWS MK107 COMPOUND SBR 7.75″ 30RD BK

Primary Weapons Systems was formed by firearm enthusiasts in 2008. Starting out by producing muzzle devices” we tested our compensators on all different types of rifles – from M4s to AK-47s. After using both styles of rifles in testing with high round counts” the difference in maintenance needed was both astounding. From that basic realization” the PWS long-stroke piston system was born; keeping the core values of the AR-15 design” while also lessening the need for maintenance in high-volume fire situations and adverse conditions. The Compound Rifle is a combination of a Mod 1 upper” with the Mk1 Mod 2 Lower.

Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator
Caliber: .223 Wylde
Barrel Length: 7.75″;Gas System Length: Carbine”
Barrel Twist Rate: 1:8
Muzzle Velocity: 2741 fps
Muzzle Device: PWS Triad 556
Upper Receiver: PWS Proprietary Piston Upper, T6 7075 Forged, Anodized
Handguard: PWS MLok 7.1 Handguard (1.8″ width, 2.1″ height)”
Charging Handle: Radian Raptor Ambidextrous Charging Handle
Lower Receiver: PWS ambidextrous MK1 MOD 2-M Multi-Caliber Lower, T6 7075 Forged, Anodized, AR-15 Compatible
Trigger: Mil-Spec Enhanced, PTFE Coated.
Trigger Pull Weight: 5.5 – 6.5 lbs.
Buffer Tube: PWS Enhanced Buffer Tube with ratchet lock castle nut and end plate set with built-in QD mount
Buffer: PWS Enhanced H2 Steel Body Buffer
Furniture: Bravo Company USA Buttstock and Pistol Grip