A 5.56 BCG (bolt carrier group) is a vital component for AR-15 rifles chambered in 5.56 NATO or .223 Remington. It includes the bolt, carrier, gas key, firing pin, cam pin, and retaining pin. The 5.56 BCG works with AR-15 upper receivers, 5.56/.223 barrels, charging handles, and lower receivers. It ensures reliable cycling, chambering, extraction, and firing, making it essential for building or upgrading AR-15 platforms in 5.56/.223 calibers.
-
Spikes Tactical HPT/MPI M16 Complete Bolt Carrier Group Phosphate Coating
Original price was: $149.95.$134.95Current price is: $134.95.Elevate your M16 rifle’s performance with the Spike’s Tactical HPT/MPI Complete Bolt Carrier Group. Phosphate coated for durability, it features 8620 steel construction and a Carpenter 158 steel bolt for…
Out of stock
-
Spikes Tactical M16 Auto Nickel Boron Bolt Carrier Group
Original price was: $225.00.$202.95Current price is: $202.95.Elevate your AR-15 rifle’s performance with the Spikes Tactical M16 Auto Nickel Boron Bolt Carrier Group. This complete BCG is MPI and HPT tested for durability, with 8620 steel construction…
In stock
-
Spikes Tactical Low Mass Lightweight M16 Nickel Boron Bolt Carrier Group
Original price was: $250.00.$225.95Current price is: $225.95.Elevate your rifle’s performance with the Spikes Tactical Low Mass Lightweight M16 Nickel Boron Bolt Carrier Group. Constructed from 8620 steel with a Carpenter 158 steel bolt, this BCG delivers…
In stock
