Mission First Tactical Battlelink Extreme Duty Minimalist Stock is a collapsible stock for AR-15, M16, and M4 platforms with mil-spec buffer tubes (1.148 diameter; tube not included), also suited for larger caliber platforms like 12-gauge tactical shotguns or 7.62x51 AR-10 while remaining nimble for 5.56 use. Made from black synthetic material with a metal chassis-reinforced Modular Buffer Tube Plunger System for long-term durability. Features an angled, non-slip, removable rubberized buttpad for faster presentation, with indexing suited for NODs use. Includes multiple sling slots, a rear-positioned QD sling mounting point, a single M-LOK connection point, and an upper section for enhanced cheek weld. Weighs 8.5 oz. Dimensions: 7.71 length, 4.85 height, 1.59 width. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.