WMD Guns 308 / AR-10 Complete Bolt Carier Group Polished
Original price was: $259.95.$249.95Current price is: $249.95.
Elevate your .308 or 7.62×51 AR-10 rifle with the WMD Guns 308 / AR-10 Complete BCG. Engineered with DPMS compatibility in mind, this top-quality bolt carrier group features WMD’s proprietary NiB-X surface treatment for unparalleled corrosion resistance and easy cleaning. With a 9310 steel bolt, 8620 steel carrier, and meticulously staked gas key, this BCG ensures optimal performance in any scenario. Made in the USA, it’s the perfect upgrade for competitive shooters, law enforcement professionals, and passionate hobbyists alike.
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Description
WMD Guns NiB-X .308 Bolt Carrier Group Nitromet NiB-X Polished
Looking for a top-quality, DPMS-compatible bolt carrier group for your .308 or 7.62 x 51 AR-10 rifle? Look no further than the WMD Guns 308 / AR-10 Complete BCG! This BCG is coated with WMD’s proprietary NiB-X surface treatment, which provides superior corrosion resistance and easy cleaning in even the most hostile environments. The 9310 bolt and 8620 carrier are properly staked for reliability, and the whole unit is engineered for optimal performance with WMD’s NiB-X coating. So, whether you’re a competitive shooter, law enforcement professional, or just a passionate hobbyist, pick up a WMD Guns 308 / AR-10 Complete BCG today! Pairs well with Daytona Tactical AR-10 uppers.
WMD Complete Bolt Carrier Group Features:
- Works with 308 DPMS Style AR-10 Rifle Uppers
- NiB-X Nitromet coated
- Bolt is 9310 Steel
- Heat-treated, shot-peened and magnetic particle inspected to ensure high-level performance
- Polished carrier to reduce fouling adherence
- Gas key secured by grade 8 hardened fasteners and properly staked
- Carrier is 8620 Steel
- Made in USA
- SKU: NIBXBCG308
The .308/AR-10 bolt carrier group is designed for AR-10 platform rifles chambered in .308 Winchester or 7.62×51 NATO. The AR-10 BCG is dimensionally larger than an AR-15 BCG and is not interchangeable — verify your upper receiver is an AR-10 pattern before ordering. WMD Guns applies their NIB-X nickel boron coating or Nitromet treatment to the BCG components, producing a hard, slick surface finish that reduces friction between the bolt carrier and the upper receiver interior. The reduced friction results in smoother cycling and easier cleaning compared to standard phosphate or parkerized finishes. Carbon fouling wipes off the slick surface rather than embedding in the finish as it does with matte coatings, significantly reducing the time and effort required for routine maintenance. The bolt is machined from tool steel and heat treated for the higher chamber pressures of the .308 Winchester cartridge. The carrier is machined from 8620 steel for durability under sustained fire. All dimensions are compatible with standard AR-10 pattern upper receivers and barrels — confirm compatibility with your specific AR-10 pattern (DPMS vs. Armalite) before ordering, as these two AR-10 patterns use different BCG dimensions.
Additional information
| Weight | 1.5 lbs |
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Frequently Asked Questions
Will this BCG fit my AR-10?
This BCG is designed for AR-10 platform rifles. However, there are two main AR-10 patterns — DPMS and Armalite — which use slightly different BCG dimensions and are not cross-compatible. Verify which AR-10 pattern your upper receiver uses before ordering to ensure proper fit and function.
What finish is applied to this BCG?
WMD Guns applies either their NIB-X nickel boron coating or a Nitromet black finish depending on the variant. Both finishes provide improved corrosion resistance and easier cleaning compared to standard phosphate. NIB-X produces a bright silver appearance; Nitromet black provides a dark, low-visibility finish. Both significantly reduce the time and effort required for routine maintenance.
Is this BCG compatible with .308 Winchester and 7.62×51 NATO?
Yes. The AR-10 BCG is dimensioned for .308 Winchester / 7.62×51 NATO chambers. The bolt face, extractor, and ejector are designed for the .308 case head diameter. Confirm your barrel chambering and AR-10 pattern before ordering.
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