SPIKE'S M16 BOLT CARRIER GROUP LW

Spike's Tactical Bolt Carrier Group, M16, Lightweight, HPT/MPI Bolt, Nickel Boron Finish ST5BG05
Your Bolt Carrier Group is one of the most critical parts of your build. Don't buy an imitation. This is the Spike's Tactical Lightweight BCG with Nickel Boron Coating.