Bolt Carrier Groups Sort By:FeaturedName: A - ZName: Z - APrice: Low to HighPrice: High to LowSpike’s 9mm Enhanced Bolt$199.95Bolt Carrier Group- Phosphate$149.95Bolt Carrier Group- Nickel Boron$225.00Bolt Carrier Group- Lightweight Nickel Boron$250.005.56 Bolt Spikes HPT/MPI Bolt Assembly – Phosphate$89.955.56 Bolt Spikes HPT/MPI Bolt Assembly – Nickel Boron Finish$109.957.62×39 Spike’s Bolt Assembly- Black Nitrite$69.957.62×39 Spike’s Bolt Assembly- Nickel Boron$109.95.308 BCG Spikes Tactical-Phosphate$249.00.308 BCG Spikes Tactical-Nickel Boron$299.005.56 Extractor Kit$4.95ION Bonded Gas Rings$9.95