The UTG Pro Model 4 Combat Ops S1 stock fits AR-15 and M4-style rifles with a mil-spec buffer tube. It is a 6-position collapsible stock molded from weatherproof, high-impact polymer and finished in black.
UTG builds the S1 to tight tolerances, so it locks up on the tube with less wobble and rattle than a loose-fitting stock. The thick rubberized recoil pad soaks up recoil, the slanted cheek rest gives a consistent cheek weld, and the chamfered edges keep it from catching on clothing. Two storage compartments give you a place for spare batteries or small parts.
Features:
Before you install: this stock is sized for a mil-spec buffer tube, not a commercial-diameter tube. Check your tube before ordering. The tube, buffer and spring are not included. To get everything in one box, order the UTG S1 stock kit instead.