Primary Weapons Systems MK2 Features The Primary Weapons Systems MK2 Mod2 operates on the Long Stroke Piston System that keeps combustion byproducts out of the action s internals meaning shooters see less fouling buildup and more consistent cycling across extended range sessions compared to a direct impingement design. The 3-setting adjustable gas system allows the shooter to dial in gas flow to match different ammunition loads or to optimize function when a suppressor is mounted adapting the rifle s cycling to whatever configuration is in use that day. The mil-spec trigger provides a familiar reliable trigger feel for shooters coming from other AR-pattern rifles. Ambidextrous controls make the rifle accessible for both right and left-handed shooters without requiring aftermarket modification. An M-LOK handguard gives shooters a lightweight direct attachment point for lights grips and other accessories without the added bulk of a quad rail system. The Magpul SL black polymer stock offers a slim adjustable length of pull for shooters to dial in their preferred fit while the PWS Enhanced grip is shaped for a secure ergonomic hold during extended shooting sessions. The stainless steel barrel s 1:10 twist rate is matched to standard .308 Win projectile weights for consistent stabilization downrange. Built for shooters who want a hard-hitting semi-auto platform with piston reliability the MK2 Mod2 is available for sale at GrabAGun. Primary Weapons Systems MK2 Mod2 Specifications Brand: Primary Weapons Systems Series: Mod2 Model: MK2 Platform: AR Style Operating System: Gas Piston Action: Semi-Auto Caliber: .308 Win Capacity: 20+1 Barrel Length: 16.10 Barrel Material: Stainless Steel Twist Rate: 1:10 Handguard: M-LOK Stock: Magpul SL Grip: PWS Enhanced Trigger: Mil-Spec Hand: Ambidextrous Stock Finish: Black Available At: GrabAGun