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BCGs & Handles
AR Bolt Carrier Groups and Pistol-Caliber Bolts
The BCGs & Handles category covers the cycling components at the core of any AR build. You'll find M16-profile bolt carrier groups for 5.56, 6.5 Grendel, and 6mm ARC, plus dedicated pistol-caliber bolts for 9mm, .40 S&W/10mm, and .45 ACP. Finishes include Nitride, Blacknitride+, and Polished Nickel Boron coating, and several M16 BCGs feature a billet extractor.
When selecting a bolt or carrier group, match the caliber to your barrel and upper—pistol-caliber bolts differ from rifle BCGs—then choose a finish and verify M16-profile compatibility with your platform. These American-made, mil-spec parts suit individual builders and manufacturers sourcing white-label components.
Pair your BCG with related components like pins and springs, buffer kits, and lower build kits to complete your setup.
What this category includes
- Rifle M16-profile BCGs in 5.56/.223 and 6.5 Grendel/6mm ARC
- Pistol-caliber blowback bolts in 9mm, .40 S&W/10mm, and .45 ACP
- 8620 steel carriers and single-piece pistol bolts; 9310 steel rifle bolts
- Heat treated, shot peened, and MPI-tested rifle bolt options
- Black nitride and polished nickel boron coating finishes
- Billet 4130 gas keys with Grade 8 fasteners, properly staked
- 17-4 stainless firing pins and AR15-style or billet extractors
- Match bolt face and carrier profile to your chosen caliber and platform
Build on.
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