Spikes Tactical M16 Bolt Carrier Group Phosphate Finish ST5BG01. These Bolt Carrier Groups by Spikes Tactical have shot peened bolts that are CNC machined from 158 carpenter steel and a mil-spec tool steel carrier key that is expertly attached with...
Spikes Tactical M16 Bolt Carrier Group Phosphate Finish ST5BG01. These Bolt Carrier Groups by Spikes Tactical have shot peened bolts that are CNC machined from 158 carpenter steel and a mil-spec tool steel carrier key that is expertly attached with...