- AR15 / AR10 Upper Receiver Parts
- Bolts Carriers & Parts
- SST AR-15 Firing Pin
- Made to Mil-Spec
- Works in Mil-Spec BCG's
The SST Firing Pin is a standard Mil-Spec drop in replacement for a worn or broken Mil-Spec firing Pin. This part will drop in to any Mil-Spec BCG made for the AR-15 platform.