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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
Frequently Asked Questions
This category includes American-made, mil-spec M16-profile bolt carrier groups for 5.56, 6.5 Grendel, and 6mm ARC, along with pistol-caliber AR bolts for 9mm, .40 S&W/10mm, and .45 ACP. You'll also find finishes such as Nitride, Blacknitride+, and Polished Nickel Boron on select carrier groups.
The M16 Bolt Carrier Group with Billet Extractor in 5.56 is offered in two finishes: a Nitride coating and a Polished Nickel Boron coating. Both are M16-profile, mil-spec carrier groups. Choose the finish that fits your build preferences and maintenance routine.
Yes. As described on this page, the M16-profile bolt carrier groups are American-made and mil-spec, covering 5.56, 6.5 Grendel, and 6mm ARC. Confirm the caliber and finish that match your specific build before ordering.
Yes. This category includes AR bolts in 9mm, .40 S&W/10mm, and .45 ACP, all with a Nitride finish. Verify the bolt matches your pistol-caliber build's caliber and specification before purchasing.
Yes. This category includes items like AR10/AR15 gas key screws and a rehab kit. For additional service components, see our BCG Repair collection to find the parts your carrier group needs.
White Label Armory ships orders in 2-3 business days. Free shipping is available on qualifying orders. Once your order is placed, your BCG or bolt is processed and dispatched within that window.
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