FAXON SUPERFINISHED 5.56 GUNNER LIGHTWEIGHT BOLT CARRIER GROUP - CHROME
Faxon
$349.00
(1 review)
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Faxon
FAXON SUPERFINISHED 5.56 GUNNER LIGHTWEIGHT BOLT CARRIER GROUP - CHROME
Description
FAXON SUPERFINISHED 5.56 GUNNER LIGHTWEIGHT BOLT CARRIER GROUP — CHROME
Lightweight precision. Maximum reliability. Effortless performance. The Faxon Superfinished 5.56 Gunner Lightweight Bolt Carrier Group – Chrome (SKU: FF556BCGCNITRIDE-LW-CR) is a premium AR-15 upgrade that blends superior strength, smooth cycling, and corrosion resistance in a lightweight, full-auto-rated package.
Machined from high-strength 9310 tool steel and weighing just 8.5 ounces, this BCG is one of the lightest in its class—without sacrificing durability or performance. The hard chrome finish (68–72 HRC) offers unmatched wear resistance and lubricity, resulting in faster cycling, reduced carbon buildup, and easier cleaning, even after high round counts.
Faxon’s Superfinished carrier body and optimized Gunner profile ensure ultra-smooth operation with reduced friction and fouling. The forward assist serrations, enhanced cam path, and fully MPI-tested bolt provide exceptional reliability, even under the harshest conditions. Every bolt features 45° chamfered lugs for smooth lockup and long-term strength, while the gas key is secured with Grade 8 fasteners and fully staked to maintain seal integrity for life.
Designed to work seamlessly with mil-spec AR-15 rifles and dust covers, the Gunner Lightweight BCG is full-auto rated and compatible with modern triggers and adjustable gas systems. Each assembly proudly bears the Faxon Shield laser engraving — your mark of precision, innovation, and American craftsmanship.
Key Features & Highlights
- Material: 9310 Tool Steel Bolt, 8620 Carrier
- Heat Treatment: Full MIL-SPEC, shot peened, and MPI tested
- Weight: 8.5 oz — one of the lightest full-auto-rated BCGs available
- Coating: Hard Chrome Finish (68–72 HRC) — non-porous, corrosion-resistant, and easy to clean
- Superfinished Carrier Body: Reduces friction and carbon buildup
- Bolt Design: 45° chamfered lugs for smoother lockup and longevity
- Extractor: S7 steel with spring, insert, and “Crane” O-ring installed
- Gas Key: Fully staked and secured with Grade 8 fasteners
- Forward Assist Serrations: Ensures confident operation
- Compatibility: Works with all mil-spec AR-15 rifles and dust covers
- Full Auto Compatible: Retains trip sear for full-auto fire control and advanced trigger groups
- FRT/FRS Compatible
- .300 BLK / 300 Blackout Compatible
- Recommended Pairing: Faxon Adjustable Gas Block for optimal function
- Engraving: Laser-etched Faxon Shield for authenticity
- Origin: Proudly designed and manufactured in the USA
Technical Specifications
| Part Number (SKU) | FF556BCGCNITRIDE-LW-CR |
|---|---|
| UPC | 816341029705 |
| Bolt Material | 9310 Tool Steel |
| Carrier Material | 8620 Steel, Superfinished |
| Extractor Material | S7 Tool Steel with Crane O-ring |
| Coating | Hard Chrome, 68–72 HRC |
| Weight | 8.5 oz |
| Compatibility | Mil-Spec AR-15 rifles and dust covers |
| Rated For | Full-Auto and Semi-Auto |
| Country | Made in USA — Faxon Firearms |
FAQ
What makes the Gunner Lightweight BCG different?
Its Superfinished carrier and hard chrome coating dramatically reduce friction, fouling, and wear, offering smoother cycling and easier cleaning than standard phosphate or nitride carriers.
Is this BCG full-auto compatible?
Yes. It is full-auto rated and compatible with all standard and enhanced AR-15 trigger groups.
Is this BCG FRT/FRS compatible?
Yes. This M16-pattern bolt carrier group is FRT/FRS compatible.
Is this BCG compatible with .300 BLK / 300 Blackout?
Yes. This 5.56 bolt carrier group is also compatible with .300 BLK (300 Blackout) AR-15 builds.
Does the chrome finish require special maintenance?
No — the chrome finish resists corrosion and carbon buildup, making it easy to wipe clean after heavy use.
What gas system is recommended?
Faxon recommends using this BCG with an adjustable gas block for optimal function and recoil tuning.
Where is this product made?
All Faxon BCGs are proudly engineered, machined, and finished in the USA.
Notice: Faxon Firearms BCGs are full-auto rated and tested for material integrity through Magnetic Particle Inspection (MPI). For best performance, use with a properly tuned gas system and carrier-compatible buffer setup.
Warranty
Faxon Lifetime Guarantee. Covers manufacturing and material defects to the original purchaser. Excludes damage from misuse, neglect, non-standard ammunition, or modifications. Register your product at faxonfirearms.com/product-registration to expedite service. For purchases through dealers or distributors, warranty repairs are handled directly by Faxon Firearms; refunds must be processed through the selling entity. Full policy: faxonfirearms.com/warranty-privacy-terms/Customers Also Shopped These Items
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Reviews
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Almost great
Very nice looking and functioning bcg. My only gripe with it is that there is poor machining in the Cam path of the bcg with clear chatter marks that even the chrome plating didn't cover. It hasn't impeded function yet but I'm concerned about aggressive wear on the cam pin itself but I have to get some more rounds through it before I will know more. P.s. if someone gets this far I have had prior experience with faxon customer service and they are FANTASTIC so I'm truly not worried about this I know if I have a problem they will take care of it!