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BCM® Bolt Carrier Groups
Bolt carrier group (auto version) for your AR15, M16, or M4. Parkerized exterior and chrome lined inside carrier. Machined to USGI specifications. This M16/M4 carrier includes the proper Mil-Spec gas key. Gas key is chrome lined and heat treated per GI specifications. Gas key is secured to carrier via USGI domestic mfg Grade 8 fasteners and properly staked per Mil-Specs. These properly hardened parts insure a strong staking and proper gas system functioning.
The bolt assembly is machined from the correct Mil-Spec Carpenter No. 158® steel, shot peened for increased strength, includes tool steel machined extractor and ejector, BCM Extractor Spring, and is HPT (High Pressure Tested) and MPI (Magnetic Partical Inspected).
- Milspec Carpenter No. 158® steel
- HPT Bolt (High Pressure Tested)
- MPI Bolt (Magnetic Particle Inspected)
- Shot Peened Bolt
- Tool Steel Extractor
- Chrome Lined Carrier (AUTO)
- Chrome Lined Gas Key
- Gas Key Hardened to USGI Specifications
- Grade 8 Hardened Fasteners Key Staked Per Mil-Spec
- BCM Extractor Spring
- Black Extractor Insert
- Mil-Spec Crane O-Ring
Manufacturer Suggested Retail Pricing $160.00
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