Faxon Firearms Gunner Lightweight BCG 5.56 NATO Salt Bath Nitride

The Faxon Firearms Gunner Lightweight Bolt Carrier Group delivers enhanced cycling speed and reduced felt recoil through precision weight reduction engineering. This 5.56x45mm NATO bolt carrier group features salt bath nitride treatment on 9310 steel construction for maximum durability and corrosion resistance.

What Makes This Different

The Gunner Lightweight BCG removes material from non-critical areas while maintaining full structural integrity in high-stress zones. Weighing approximately 25% less than standard mil-spec carriers, this design reduces reciprocating mass for faster lock time and improved accuracy. The salt bath nitride finish provides superior hardness compared to phosphate coatings while maintaining tight tolerances.

Key Features

• 9310 steel bolt with shot-peened surface for enhanced fatigue resistance
• Salt bath nitride treatment rated to 70 HRC surface hardness
• Lightweight carrier design reduces reciprocating mass by 2.5-3 ounces
• Mil-spec dimensions ensure compatibility with all AR-15 platforms
• Chrome-lined gas key with Grade 8 fasteners and proper staking
• Enhanced bolt extension geometry for reliable extraction
• Machined from certified 8620 steel carrier blank

Field testing demonstrates consistent cycling with both 5.56 NATO and .223 Remington ammunition across various barrel lengths. The reduced reciprocating mass provides measurable improvements in rapid-fire accuracy and muzzle rise control during competitive shooting scenarios. Salt bath nitride treatment maintains lubricity properties that reduce cleaning time while extending service intervals in high-volume applications.

Technical Specs

• Caliber: 5.56x45mm NATO/.223 Remington
• Material: 9310 steel bolt, 8620 steel carrier
• Finish: Salt bath nitride (QPQ process)
• Weight: Approximately 8.5-9 ounces (lightweight configuration)
• Compatibility: AR-15 platform rifles and pistols
• Gas key: Chrome-lined with Grade 8 screws
• Country of Origin: United States
• Headspace: Mil-spec .223/5.56 chamber dimensions

Faxon Firearms engineers this bolt carrier group to exceed mil-spec standards while delivering competition-grade performance characteristics. The combination of advanced metallurgy and precision manufacturing creates a reliable upgrade for shooters demanding enhanced accuracy and reduced maintenance requirements.