Faxon 5.56 M16 Bolt Carrier Group, Nitride

(28 reviews)
Current Stock:


The Faxon 5.56 M16 Bolt Carrier Group, Nitride is a high-performance and reliable upgrade for your AR-15 rifle. This bolt carrier group is designed for optimal performance and is made from top-quality materials, ensuring durability and longevity. The nitride finish on the carrier and bolt provides added corrosion resistance, making it a great choice for use in harsh environmental conditions.

The Faxon 5.56 M16 Bolt Carrier Group, Nitride features a full-auto rated design, making it compatible with M16-style rifles and other firearms that use a similar operating system. The enhanced design of the bolt carrier group provides smooth and consistent cycling, resulting in reliable and accurate performance.

With a user-friendly design and easy installation process, the Faxon 5.56 M16 Bolt Carrier Group, Nitride is an excellent choice for both novice and experienced gun enthusiasts. Whether you're using your rifle for hunting, competition shooting, or self-defense, this bolt carrier group will provide you with the reliable and consistent performance you need. Upgrade your AR-15 rifle today with the Faxon 5.56 M16 Bolt Carrier Group, Nitride.

Seeing "MIL-SPEC" as just the starting point, we set out to ensure the best options are available for our demanding customers. 

Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease resistance, and have superior corrosion resistance compared to typical chrome and phosphasted bolt carrier groups. All bolts are fully MPI tested to ensure the material is sound and without defects. Bolt lugs are chamfered 45 degrees to ensure reliable action for even the highest pressure hand loads and fast lightweight actions. 

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. 


Detailed Specifications:

  • 9310 Tool Steel Bolt
  • 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
  • Salt Bath Nitrided Bolt & Carrier
  • S7 Extractor
  • Superfinished Carrier Body
  • Full Auto Compatible
  • Forward Assist Serrations



  • 5
    FAXON 5.56 M16 BCG

    Posted by GARY NORRIS on Dec 23rd 2021

    I purchased this to go along with my 16" heavy mid length Faxon barrel . The finish and machinig is top notch and is priced right . It is my first Faxon BCG and I believe it won't be the last . I have used BCM , Daniel Defense , Spikes , Aim surplus and i believe the quality exceeds the price point . All the purchases from Faxon have always pleased me , Several barrels in both 5.56 and 300 ACC and for the money i haven't seem better quality .

  • 5
    Amazing once again

    Posted by Tommy on Dec 22nd 2021

    Faxon once again did not disappoint! Will continue to use their products for my customers builds!

  • 5
    5.56 BCG

    Posted by Arthur Wiggins on Sep 4th 2018

    High quality part at an incredible low MSRP.

  • 5
    Faxon 5.56/300 BLK BCG Complete-Ntride

    Posted by William S. on Jan 23rd 2018

    First build using Faxon products. I am amazed by fit and finish of BCG barrel and gas block. Finished barrel break in today without failure and accuracy was great from the start. Spent cases all landed within 12 inches of each other. Quality surpasses most of more expensive components I have used in past. Most impressed!

  • 5
    Affordable Excellence

    Posted by Shwell on Jan 23rd 2018

    Great BCG with all the necessary features, along with added bonuses that makes this BCG an easy choice for future builds. The right materials in the right places and an attention to Detail often missing at this price point by other competitors. Well over 2000 problem free rounds.

  • 5
    10/10 it is a Top quality BCG, Which run more than 1000 round without a malfunction!! I would definetly order more.

    Posted by Abraham on Jan 11th 2018


  • 5
    First time buyer, very impresed

    Posted by Wayne Liskey on Dec 18th 2017

    I matched this BCG to a 16'' match pencil barrel and the preformance is just as goo as the product looks....perfect!

  • 5
    Quality BCG

    Posted by aDarnGoodJoe on Oct 17th 2017

    As with everything made by Faxon, this is a quality BCG. Everything appears to be machined and finished properly. Staking is well done. I expect this BCG will provide excellent service for many years to come.

  • 5
    Faxon 5.56/300 BLK M16 Bolt Carrier Group - Complete

    Posted by John Mullikin on Sep 26th 2017

    Purchased with barrel, very pleased, excellent quality