JE MACHINE TECH SOPMOD MIL-SPEC BUTTSTOCK WITH BUFFER TUBE KIT Fits: AR10 / AR15 Mil-Spec Standard Carbine Adjustable Buttstock, Black Rubber non-slip butt pad Two watertight storage compartments Stainless steel QD swivel mount Stock adjustable to 6 positions Mil Spec Buffer Tube, Black (6061 T6 Aluminum) Spring 3 oz Buffer, Black Castle Nut Standard End Plate Made in the USA