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WMD Guns AR-15 Bolt Carrier Group NiB-X 7.62x39 Without Hammer
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7.62x39
Bolt – Case hardened 9310, shot peened, magnetic particle inspected
Cam Pin – Manufactured, heat treated, hardened and certified per government drawing
Carrier – M4/16 style full auto (heavier) functions in AR15 and M4/16 platforms, 8620 material, heat treated and case hardened
Extractor – Manufactured, heat-treated, and hardened
Firing Pin – Manufactured, heat-treated, hardened, chromed and certified per Government drawings
Gas Key – Hardened to USGI specifications and attached using grade 8 hardened fasteners
NiB-X coating
Specifications
Caliber
Brand
Model
MPN
1-NIBXBCG762x39
UPC
855899003379
MSRP
$195
Finish
NiB-X
Fits
AR-15 and M4/16 platforms
Color
Silver
Material
9310 steel bolt, 8620 carrier
Description
This AR-15 bolt carrier group is chambered for 7.62x39mm and is built for AR-15 and M4/16 platform rifles. The bolt is made from 9310 steel and the carrier from 8620 steel, both case hardened and heat treated. The components are coated with NiB-X and polished to reduce fouling adherence, which the manufacturer notes is particularly relevant for short barrel and suppressed setups.
The group includes a shot peened, magnetic particle inspected bolt, a heat treated extractor, a chromed firing pin, a gas key attached with grade 8 hardened fasteners, and a cam pin manufactured to government drawings. The carrier is an M4/16 style full auto design with a heavier profile. This listing does not include a hammer.
- Caliber: 7.62x39mm
- Platform: AR-15 and M4/16
- Finish: NiB-X
- Bolt material: 9310 steel, case hardened
- Carrier material: 8620 steel, heat treated
- Color: Silver
- Carrier style: M4/16 full auto (heavier)
- Included: Bolt carrier group without hammer
