Got a Bushmaster lower with a notched hammer? Want to run a 22 upper or conversion on it? Having problems with the semi auto notched hammer? This is what you need!
Bushmaster Factory M16A2 rounded profile unnotched hammer, with J hook removed by even grind and surface leveling. Dicopan was then applied over the bare metal for rust proofing. Hammer is brand new and was purchsed specifically for this purpose. Sp1 conversion was performed, then the hammer was function checked in a lower, so it is guaranteed to work with your .22 upper or conversion. I did 2 of them, and they both turned out great. Im keeping one and selling the other. Satisfaction guaranteed or your money back, no questions asked.