The JE Machine Made in USA Mil-Spec 223/5.56 Rifle SOPMOD Buttstock with Buffer Tube Kit Combo combines cutting-edge design with rugged durability. Originally crafted for elite military units, this SOPMOD buttstock features high-strength impact-resistant polymer for lasting performance. It includes ambidextrous quick detach mounting points and watertight storage compartments, ensuring functionality and convenience. The adjustable stock offers six positions for optimal customization, while the wide cheek weld and recoil-reducing buttpad enhance shooting comfort. Paired with a meticulously engineered Mil-Spec buffer tube made from 6061-T6 aluminum, this combo is a reliable choice for any AR10 or AR15 enthusiast. Originally designed by the naval surface warfare center to equip some of America's most elite warfighters. The iconic SOPMOD buttstock is the go to choice for our nation's best. Our SOPMOD AR Buttstock is meticulously crafted from ultra-modern high strength impact resistant polymer to deliver the reliable performance you can count on for a lifetime. Equipped with ambidextrous universal quick detach mounting point, watertight storage compartments, wide cheek weld, and recoil reducing buttpad. JE Machine Tech Buffer tube is constructed from high-strength, impact-resistant polymer, this stock is an easy choice for any build. Constructed of 6061-T6 aluminum, with meticulous care given to each cut, our Mil-Spec buffer tubes are sure to be the perfect choice for any range toy or utility build. Fits: AR10 / AR15 Mil-Spec SOPMOD Stock, Black Stock adjustable to 6 positions Mil-Spec Buffer Tube, Black (6061 T6 Aluminum) Spring 3 oz Buffer, Black Castle Nut Standard End Plate