The UTG Pro Model 4 Combat Ops S1 stock kit gives an AR-15 a complete collapsible stock setup. It includes the stock, a mil-spec buffer tube (receiver extension), buffer, buffer spring, tear-drop ring and castle nut, finished in black.
The stock is a 6-position collapsible design molded from weatherproof, high-impact polymer, and UTG builds it to tight tolerances for a secure, quiet fit. The buffer tube has rolled threads for a precise fit in the receiver. A thick rubberized recoil pad, slanted cheek rest and chamfered edges make it comfortable to shoot.
Includes:
Features:
Before you install: you will need a castle nut wrench to torque the castle nut to spec. Stake the castle nut so it does not back out, then function check the rifle before live fire. If you are not comfortable installing a buffer tube, have a gunsmith do it.
