The Leapers UTG PRO AR15 Ops Ready S1 Mil-spec Stock Kit is a collapsible, AR-15 and M4 style stock constructed of weather proof and rugged high impact polymer. This six-position stock is designed for heavy duty operations and is made with the tightest tolerances for the most secure fit and silent performance. The rolled threads on the mil-spec buffer tube provide a precision fit for a rock solid mount. It has a thick rubberized recoil pad, reversible Quick Detach sling swivel housing, and an ambidextrous sling loop attachment. Chamfered edges and slanted cheekrest provide the comfort you're looking for.