XTS Mil Spec AR-15 Buffer Tube Assembly Kit

The XTS BTA-MIL kit has everything for an AR-15 buffer system in one package: a mil spec buffer tube, the buffer, the buffer spring, a castle nut and the end plate.

It is a straightforward way to finish a lower build or replace a worn buffer setup without hunting down parts one by one. Because the tube is mil spec diameter, it takes stocks made for mil spec tubes.