AR-15Specifications
Mfr data- Weight
- 11.50 oz
- caliber
- 5.56 NATO/.223/.300 BLK
- coating
- NiB-X (Nickel Boron)
- staking
- Properly staked
- bcg type
- Full auto
- hpt tested
- Yes
- mpi tested
- Yes
- bolt material
- Carpenter 158
- carrier material
- 8620 Steel
- country of origin
- USA
WMD GunsLCL-P-2778
WMD Guns NiB-X M16 BCG 5.56
WMD Guns NiB-X (Nickel Boron) coated M16 BCG. Full-auto carrier with C158 bolt. The NiB-X coating is their proprietary nickel boron process for extreme lubricity.
BCG11.50 oz
Best price today$179.99from WMD Guns · 4 retailers
Best pricePrice comparison — 5 offers
By priceAffiliate disclosure: Loadout Combat Lab may earn a commission from qualifying purchases made through retailer links. Rankings are by price — never sponsored.
Fits These Platforms
Similar Parts
WMD Guns
WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG, 5.56, NiB-X, White, 1-NIBXBCG0005-White
BCG$162
Cryptic
Cryptic 6.5 Grendel - Type ll Bolt Carrier Group BCG, Nickel Boron, CC-1205
BCG$162
Cryptic
Cryptic Bolt Carrier Group BCG - Complete, 458 SOCOM/.450 Bushmaster, Nickel Boron, CC-0405
BCG$162
WMD Guns
WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG, 5.56, NiB-X, Purple, 1-NIBXBCG0005-Purple
BCG$164
Faxon Firearms
Faxon Firearms 458/ 450 M16 Bolt Carrier Group BCG, Nitrided, FF458BCGCNITRIDE
BCG$161
WMD Guns
WMD Guns AR-15 Bolt and Carrier Group BCG w/ Hammer, Nib-X, WMDNIBXBCG-0002
BCG$164