Guntec USA AR-15 / M16 Complete Nitride Bolt Carrier Group

Vendor: Guntec USA


Guntec USA M16 Bolt Carrier Group for .223/5/56 and 300BLK Nitride Coated

Guntec USA Complete Nitride M-16 BCG is nitride Coated Inside and Out (Bolt, Carrier, and Gas Key) then assembled by experienced personnel. The Guntec complete bolt carrier groups for The AR-15 are made from high quality steel .  The bolt carrier is made from 8620 steel and the bolt from 9310 steel. The gas key on the AR-15 BCG has been properly staked, the extractor spring has an upgraded O-ring for more tension, and all surfaces are nitride coated. The Bolt has been magnetic particle inspected for proper strength and machining.

Mil Spec Carrier

8620 Tool Steel

Full Auto M-16

Mil Spec Bolt

9310 Steel
Magnetic Particle Inspected (MPI)

Mil Spec Extractor

 8620 Tool Steel
Nitride Finish
Extractor Spring

Mil Spec Gas Key

8620 Tool Steel
Grade 8 Hardware
Properly Staked

Weight: 11.6oz