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Questions & Answers
What buffer and spring setup would recommend for this bolt I’m running a 16” rock river arms with a super safety I want to run reliable in super safe Manufacturer Answer

Due to the reduced mass of this bolt carrier group, you will want to start with an H3 buffer and likely an enhanced power spring.

by Faxon Firearms, Manufacturer, April 21, 2026
WILL THIS WORK IN PSA 300 BLKOUT? Manufacturer Answer

This BCG will work in any standard AR-15 receiver and the bolt is a standard 5.56 bolt, which will be appropriate for .300BLK. You will likely need to tune the buffer weight or gas system to accommodate the lighter carrier.

by Faxon Firearms, Manufacturer, August 28, 2025
Customer Reviews
Helpful Positive Review
Faxon lightweight bcg by Sir Shootsalot, Verified Owner, November 28, 2023
The only bcg I'd recommend for suppressed subs on any di gun. It's gives you the little extra energy you need to cycle.
1/1 found this helpful
Helpful Positive Review
300 blk subs by Ronald M., April 18, 2023
Revamped my 300 blk pistol with the Faxon lightweight BCG and the Riflespeed adjustable gas block. Fine tuned on the fly. With this bolt it barely takes any gas to cycle. No more bong hits when shooting suppressed. Definitely recommend if you’re buil...
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FAXON LIGHT WEIGHT BGC by R West, Verified Owner, August 22, 2024
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13% OFF AR Parts + 2% Bucks

ARPARTYClick to Copy Coupon Code
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Color:
Gold
Finish:
Nitride
Caliber:
.300 AAC Blackout, 5.56x45mm NATO
Hand:
Right

Code: 11I-BCG-GGFR18-FF556BCGCNITRIDE-LW-TIN

MPN: FF556BCGCNITRIDE-LW-TiN

UPC: 816341024656

List: $299.00Save $23.00
$276.00

Product Info for Faxon Firearms 5.56 Gunner Lightweight Bolt Carrier Complete

Reduce your rifle's weight while increasing its reliability and performance with this Faxon Firearms Gunner Light Weight 5.56/.300 Bolt Carrier Group BCG. These Bolt Carrier Groups from Faxon Firearms use only MIL-SPEC or better materials to ensure you only equip your weapon with the very best parts. The Faxon Firearms Gunner Lightweight 5.56/.300 BCG features forward assist serrations, and it is compatible with dust covers so that you can protect the internal components from debris. Equip this durable and corrosion-resistant Faxon Firearms Gunner Lightweight 5.56/.300 Complete Bolt Carrier Group BCG to ensure your gun cycles properly with every pull of the trigger.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms 5.56 Gunner Lightweight Bolt Carrier Complete:

Manufacturer: Faxon Firearms
Color: Gold
Finish: Nitride
Fabric/Material: 9310 Tool Steel Construction
Carrier Material: 8620 Steel
Bolt Material: 9310 Steel
Caliber: 5.56x45mm NATO, .300 AAC Blackout
Hand: Right

Features:

  • Bolt:
  • 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
  • Extractor:
  • S7 Tool Steel Construction
  • Fully Heat Treated
  • Shot Peened Per MIL-SPEC
  • QPQ - Salt Bath Nitrided
  • 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
  • Cam Pin:
  • 4140 Pre-Hardended Steel Material
  • QPQ - Salt Bath Nitrided

Package Contents:

  • Faxon Firearms Gunner Light Weight 5.56/.300 Bolt Carrier Group

Faxon Firearms 5.56 Gunner Lightweight Bolt Carrier Complete Orderable Models

List of Orderable Models

  • Faxon Firearms 5.56 Gunner Lightweight 9310 Bolt Carrier Complete - Nitride- TiN PVD, FF556BCGCNITRIDE-LW-TiN , MPN: FF556BCGCNITRIDE-LW-TiN , UPC: 816341024656 , Code: 11I-BCG-GGFR18-FF556BCGCNITRIDE-LW-TIN
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