At Police Supply Online we carry a wide range of police equipment including duty and concealment holsters, handcuffs, restraints, baton, military supplies and tactical gear.
Tapco AR Receiver Extension Build Kit
Whether you're building from the ground up, or replacing existing parts, this is the receiver extension build kit you need. Includes M4 Buffer Tube, Castle Nut, TAPCO End Plate Sling Adaptor, Buffer, and Recoil Spring. Available in Mil-Spec and commercial variations.