Faxon Firearms167528255
Faxon Firearms 5.56X45 Nato Lightweight Mil-Spec Bcg Nitride Chameleon Pvd$275.08
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Availability: In Stock
The Faxon Firearms 5.56 NATO Lightweight Mil-Spec BCG is built for shooters who refuse to settle—whether you're running a precision rifle at the range, a tactical setup for competition, or a dependable AR for hunting. This bolt carrier group brings genuine engineering improvements to a part that absolutely has to work. Faxon engineered it to be lighter than typical mil-spec groups without sacrificing strength or reliability, using stronger 9310 tool steel for the bolt and implementing QPQ salt bath nitriding across all components for superior corrosion resistance and wear life compared to standard chrome and phosphate finishes.
The real difference is in the details. Every bolt is fully MPI tested to catch material defects before they reach you. The bolt lugs are chamfered at 45 degrees to ensure reliable feeding even under high pressures and fast cycling. All components receive superfinishing to reduce friction and fouling, letting the BCG run smoother and require less gas to cycle. Grade 8 fasteners secure the gas key and are fully staked for permanent reliability. The extractor is cut from S7 tool steel, heat-treated and shot-peened to spec, then nitrided for longevity.
This BCG maintains full-auto trip sear compatibility and works with modern multi-stage trigger systems, so it'll function reliably whether your firearm is set up for semi or full-auto capability. The forward assist serrations are standard M16 profile. If you're building or upgrading an AR-15 and want a carrier group engineered for durability and smooth operation without unnecessary weight, Faxon's reputation for quality—backed by their laser-engraved inspection mark—speaks for itself.
| Caliber | 5.56 NATO |
| Bolt Material | 9310 Tool Steel |
| Bolt Treatment | MIL-SPEC heat treatment, shot peened, QPQ nitrided, MPI tested |
| Carrier Material | MIL-SPEC 8620 Steel |
| Gas Key Material | 4140 Steel |
| Gas Key Fasteners | Grade 8, fully staked |
| Extractor Material | S7 Tool Steel |
| Extractor Treatment | Fully heat treated, shot peened per MIL-SPEC, QPQ nitrided |
| Cam Pin Material | 4140 Pre-hardened Steel |
| Cam Pin Treatment | QPQ nitrided |
| Carrier & Key Weight | 6.32 ounces (does not include bolt or pins) |
| Forward Assist Serrations | M16 profile, full-auto compatible |
| Finish | QPQ Salt Bath Nitriding |
| Fire Control Compatibility | Full-auto rated, maintains trip sear, multi-stage trigger compatible |
Yes. The forward assist serrations are standard M16 profile, and the BCG is designed to work with typical AR-15 upper receivers and dust covers.
Yes. This BCG is full-auto rated and maintains the trip sear for full-auto fire control groups. It's also compatible with new multi-stage trigger systems.
The carrier and key together weigh 6.32 ounces. This lightweight design reduces reciprocating mass, allowing faster cycling and requiring less gas pressure to operate.
Faxon uses QPQ salt bath nitriding on all components, which increases surface hardness, improves corrosion resistance, and enhances wear life compared to typical chrome and phosphate finishes. The process also increases the carrier's natural slickness, reducing friction and fouling.
SKU: 167528254 • Weight: 0.6oz
Availability: In Stock
The Faxon Firearms 5.56 NATO Lightweight Mil-Spec BCG is built for shooters who refuse to settle—whether you're running a precision rifle at the range, a tactical setup for competition, or a dependable AR for hunting. This bolt carrier group brings genuine engineering improvements to a part that absolutely has to work. Faxon engineered it to be lighter than typical mil-spec groups without sacrificing strength or reliability, using stronger 9310 tool steel for the bolt and implementing QPQ salt bath nitriding across all components for superior corrosion resistance and wear life compared to standard chrome and phosphate finishes.
The real difference is in the details. Every bolt is fully MPI tested to catch material defects before they reach you. The bolt lugs are chamfered at 45 degrees to ensure reliable feeding even under high pressures and fast cycling. All components receive superfinishing to reduce friction and fouling, letting the BCG run smoother and require less gas to cycle. Grade 8 fasteners secure the gas key and are fully staked for permanent reliability. The extractor is cut from S7 tool steel, heat-treated and shot-peened to spec, then nitrided for longevity.
This BCG maintains full-auto trip sear compatibility and works with modern multi-stage trigger systems, so it'll function reliably whether your firearm is set up for semi or full-auto capability. The forward assist serrations are standard M16 profile. If you're building or upgrading an AR-15 and want a carrier group engineered for durability and smooth operation without unnecessary weight, Faxon's reputation for quality—backed by their laser-engraved inspection mark—speaks for itself.
| Caliber | 5.56 NATO |
| Bolt Material | 9310 Tool Steel |
| Bolt Treatment | MIL-SPEC heat treatment, shot peened, QPQ nitrided, MPI tested |
| Carrier Material | MIL-SPEC 8620 Steel |
| Gas Key Material | 4140 Steel |
| Gas Key Fasteners | Grade 8, fully staked |
| Extractor Material | S7 Tool Steel |
| Extractor Treatment | Fully heat treated, shot peened per MIL-SPEC, QPQ nitrided |
| Cam Pin Material | 4140 Pre-hardened Steel |
| Cam Pin Treatment | QPQ nitrided |
| Carrier & Key Weight | 6.32 ounces (does not include bolt or pins) |
| Forward Assist Serrations | M16 profile, full-auto compatible |
| Finish | QPQ Salt Bath Nitriding |
| Fire Control Compatibility | Full-auto rated, maintains trip sear, multi-stage trigger compatible |
Yes. The forward assist serrations are standard M16 profile, and the BCG is designed to work with typical AR-15 upper receivers and dust covers.
Yes. This BCG is full-auto rated and maintains the trip sear for full-auto fire control groups. It's also compatible with new multi-stage trigger systems.
The carrier and key together weigh 6.32 ounces. This lightweight design reduces reciprocating mass, allowing faster cycling and requiring less gas pressure to operate.
Faxon uses QPQ salt bath nitriding on all components, which increases surface hardness, improves corrosion resistance, and enhances wear life compared to typical chrome and phosphate finishes. The process also increases the carrier's natural slickness, reducing friction and fouling.
SKU: 167528254 • Weight: 0.6oz