AT3 Tactical Castle Nut for AR-15 Buffer Tubes Blue

AT3 Tactical Castle Nut for AR-15 Buffer Tubes Blue. With standard cuts for use with armorers wrench and smaller cuts for staking the castle nut and endplate for a secure hold this part does everything it should at a good price. If youre in need of a spare for a new build or replacing a damaged component this one is right for you. You can also add a little more color to your black rifle with with your choice of Cerakote finish. Specifications for AT3 Tactical Castle Nut for AR-15 Buffer Tubes: M