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Faxon Firearms “Gunner” Ultra-Light Bolt Carrier Group

Posted on April 28th, 2016 by ar15news

When looking to reduce felt recoil in an AR-15 (there isn’t a ton but there’s enough), one route you could go is to go with a lightweight Bolt Carrier Group. Lightweight BCGs are largely used in competition rifles like those used 3-Gun where the lighter the recoil the better for fast followup shots, etc. Faxon Firearms is already very well know for their successful ARAK-21 self contained piston upper and massive selection of barrels but noticed some issues with other lightweight BCGs and decided to make their own. Check out the all new Faxon Firearms “Gunner” Ultra-Light BCG and intro pricing info below.


When looking at lightweight bolt carrier groups, we were unsatisfied with what the market had to offer. Seeing a capability gap, we set out to create a bolt carrier group that could live up to the GUNNER name with no compromise in strength or function. We set specifications that would allow no compromise:

1. Lightest Weight Possible (8.32 Ounces Complete, 6.24 Ounces Carrier & Key Only)
2. MIL-SPEC Materials & Finishes or Better!
3. Forward Assist Serrations
4. Compatible with Dust Covers
5. Maintains Full-Auto Trip Sear for full-auto and the new multi-stage trigger functionality
6. Looks Amazing


Matching our barrels, we selected the QPQ method of Salt Bath Nitride for all the carriers components. By coating all parts, the carrier’s natural slickness is increased markedly requiring less gas and pressure to operate. Further, the QPQ SBN process seals components against corrosion while making them fantastically wear resistant.



As a testament of our trust, the carriers are all laser-engraved with the Faxon Shield after passing all Quality inspections.

Detailed Spec:

– 9310 Tool Steel Construction (Stronger than C158)
– 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
– QPQ – Salt Bath Nitrided

– S7 Tool Steel Construction
– Fully Heat Treated
– Shot Peened Per MIL-SPEC
– QPQ – Salt Bath Nitrided

Carrier & Key:
– Carrier: MIL-SPEC 8620 Steel Material
– Key: 4140 Steel Material
– Fully Heat Treated
– Forward Assist Serrations
– M16 (FULL-AUTO) Compatible
– Grade 8 Fasteners
– Fully & Properly Staked Key, Permatex Sealed
– QPQ – Salt Bath Nitrided
– Weight w/ Key (Not Bolt or any Pins): 6.32 Ounces

Cam Pin:
– 4140 Pre-Hardended Steel Material
– QPQ – Salt Bath Nitrided

The very first run of the all new Faxon Firearms “Gunner” Ultra-Lightweight Bolt Carrier Group is being offered at an introductory price through …. yup, you guessed it …. Rainier Arms. There are currently less than 35 of these available at the introductory price of $199.99. Get one now at

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