FAXON SUPERFINISHED .458 SOCOM/.450 BUSHMASTER BOLT CARRIER GROUP - NITRIDE
Faxon
$175.00
(1 review)
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Faxon
FAXON SUPERFINISHED .458 SOCOM/.450 BUSHMASTER BOLT CARRIER GROUP - NITRIDE
Faxon Superfinished .458 SOCOM / .450 Bushmaster Bolt Carrier Group – Nitride
Category: Rifle Parts
Platform: AR15
Series: Bolt Carrier Groups
Caliber/Cartridge: .458 SOCOM, .450 Bushmaster
SKU: FF458BCGCNITRIDE | UPC: 816341024182
MSRP: $175.00
The Faxon Superfinished .458 SOCOM / .450 Bushmaster Bolt Carrier Group (Nitride) is built for shooters running big-bore AR-15 platforms who want smooth cycling, dependable extraction, and long-term durability. Seeing “MIL-SPEC” as the starting point, Faxon upgrades the details that matter—materials, inspection, and surface finishing—to meet the demands of hard-use rifles.
This BCG features a 9310 tool steel bolt that is fully MPI tested, heat treated, and shot peened. The assembly receives a salt bath nitride treatment to increase surface hardness, reduce resistance, and provide superior corrosion resistance compared to typical chrome or phosphate finishes. Bolt lugs are chamfered to promote reliable cycling under high-pressure loads and fast action speeds.
Faxon Bolt Carrier Groups are Superfinished to reduce friction, increase smoothness of operation, and reduce fouling. The carrier is M16 pattern (full-auto compatible) and maintains the trip for full-auto fire control groups and many modern trigger systems. Gas keys use grade 8 fasteners and are fully staked for long-term reliability.
Detailed Specifications
- 9310 Tool Steel Bolt
- Full MIL-SPEC Heat Treatment
- Shot Peened to MIL-SPEC
- Magnetic Particle Inspection (MPI)
- Back of Lugs Chamfered for Reliability
- Spring, Insert, & “Crane” O-Ring Installed
- Salt Bath Nitrided Bolt & Carrier
- S7 Extractor
- Superfinished Carrier Body
- Full Auto Compatible (M16 Pattern)
- Forward Assist Serrations
Frequently Asked Questions
Is this bolt carrier group full-auto compatible?
Yes. This is an M16-pattern carrier that is full-auto compatible and includes forward assist serrations.
Is this BCG compatible with both .458 SOCOM and .450 Bushmaster?
Yes. This BCG is designed for AR-15 platforms chambered in .458 SOCOM and .450 Bushmaster that use the appropriate bolt-face specification for those cartridges.
Why choose nitride and Superfinish?
Salt bath nitride increases surface hardness and corrosion resistance while reducing friction. Faxon’s Superfinish further reduces friction and fouling for smoother cycling and easier cleaning.
Warranty: Faxon Firearms products are backed by our Lifetime Guarantee to the original purchaser against defects in materials and workmanship. Warranty service requires an RMA and proof of purchase. Full terms and exclusions:
https://faxonfirearms.com/warranty-privacy-terms/
Reviews
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.458 SOCOM BCG
Just finished building my .458 SOCOM upper build. I put this in a side charging upper. No dust cover. This BCG looks beautiful. It goes into battery, buttery smooth. I don't expect any complications at the range next weekend, but if any arise, I'll update this review. For now, I couldn't be happier.