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.
Primary Weapons Systems Compound, Semi-automatic Rifle, SBR, 223 Wylde, 11.85″ Barrel, Long Stroke Piston System, PWS Triad556 Muzzle Device, Anodized Finish, Black, BCM Stock, 30 Rounds, 1 Magazine, Ambidextrous, Radian Raptor Charging Handle 22-C111RA1B-NFA
