Primary Weapons Systems was formed by firearm enthusiasts in 2008. Starting out by producing muzzle devices, they tested their 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

• Ambidextrous Magazine Release
• Ambidextrous Bolt Catch
• Lightweight Design
• Integrated Trigger Guard

Primary Weapons Systems MK1 Mod 2-M, Stripped Lower Receiver, Semi-automatic, 556NATO, Hard Coat Anodized, Black, All Proprietary Ambi Parts Included MK1-M2-LWR