Faxon 5.56/300 BLK GUNNER Light Weight Bolt Carrier Group - Stripped w/ Gas Key

Faxon 5.56/300 BLK GUNNER Light Weight Bolt Carrier Group - Stripped w/ Gas Key

(2 reviews) Write a Review
$199.00 $179.10
(You save $19.90)

Note - Product is for the STRIPPED bolt carrier with gas key installed. For the complete GUNNER BCG including bolt, click here. 

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 (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. 

Faxon Bolt Carrier Groups are Superfinished to reduce friction, increase smoothness of operation, and reduce fouling. Further, they are full-Auto rated and maintain the trip for full-auto fire control groups and new multi-stage trigger systems. Gas keys use grade 8 fasteners and are fully staked for a lifetime of service. 

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

Detailed Specifications:

Carrier & Key:

  • Superfinished Carrier
  • 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




Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

2 Reviews Hide Reviews Show Reviews

  • Great Lightweight Upgrade

    Posted by Johnny on Mar 17th 2017

    I purchased the Faxon Complete Low Mass BCG a while back for a lightweight build sporting the Faxon Gunner Barrel and really like it. I think Faxon offering the carrier itself is fantastic for those wanting a low mass BCG but, in various calibers and/or to simply save some weight as I did when buying this new light weight carrier and plan to for my 450 Bushamster when funds allow. I really love the fact that Faxon kept the forward assist serrations for hunting applications when slamming a round home isn't an option. Another great product from Faxon! Keep em comin!!!

  • More top notch products!

    Posted by Unknown on Jul 29th 2016

    We've been selling the Faxon 9mm, 223, and 308 barrels for several months and have had great reports from our customers. We recently recently received the lightweight BCGs and the attention to detail is obvious. Great product!


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