Faxon Firearms 5.56 NATO AR-15 Bolt Carrier Group - Nitride

The Faxon Firearms 5.56 M16 Bolt Carrier Group with Nitride finish delivers robust reliability for AR-15 rifles using an M16 profile. Built from premium 9310 tool steel and treated with salt-bath nitride, it offers superior corrosion resistance, reduced friction, and lasting surface hardness. Every component meets or exceeds MIL-SPEC standards with heat treatment, shot peening, magnetic particle inspection, and polished superfinishing for smooth and dependable cycling.

The bolt lugs are precisely chamfered, and the assembly includes a spring, insert, crane O-ring, and S7 extractor. Its full-auto compatibility and a staked gas key using grade 8 fasteners ensure consistent, fail-safe performance, round after round.

Features:

• 9310 tool steel bolt for exceptional strength
• Salt-bath nitride coating on carrier and bolt for corrosion resistance and reduced friction
• MIL-SPEC heat treatment and shot-peening ensure structural durability
• Magnetic particle inspected components for flawless material integrity
• Chamfered bolt lugs for smooth cycling under pressure
• Includes spring, insert, Crane O-ring, and S7 extractor for ready-to-install operation
• Superfinished carrier body offers slick operation and reduced fouling
• Full-auto rated M16 profile with forward assist compatibility
• Staked gas key using grade 8 hardware delivers lasting alignment and reliable service