AT3(TM) Castle Nut for AR-15 Buffer Tubes - 9 Colors Available - Titanium (Color: Titanium)

Secure Your AR15 Buffer Assembly with a Steel Castle Nut This steel castle nut is an essential piece of an AR15 buffer tube/stock assembly. With standard cuts for use with armorer's wrench, and smaller cuts for "staking" the castle nut and endplate for a secure hold, this part does everything it should at a good [...]