Windham Weaponry 

 A2 SOLID BUTT STOCK KIT AR-15

This is the AR15 / M16 standard solid stock with buttplate storage compartment .Our kit includes a rifle length stainless steel action spring, a standard buffer, the A2 standard receiver extension, an  A2 stock spacer and screw, and the "trapdoor" stock with serrated buttplate and sling loop.