M16 Bolt Carrier Group - Billet Extractor, 5.56, Nitride

(23 reviews) Write a Review

Outerwild Manufacturing produces our M16 BCG which is trusted by seasoned shooters and depended on by experienced builders. Our goal is to go above and beyond Mil-Spec expectations! The Outerwild secret sauce: PRECISION GROUND. We machine and grind our BCGs to perform for tens of thousands of rounds. We grind the outside dimensions and ALL three interior dimensions of our carrier, giving our BCGs a near friction-less surface finish. To ensure long-term reliability and corrosion resistance, Outerwild partners with industry-leading finisher: H&M. Their Blacknitride+™ finish delivers the utmost durability and improved lubricity for our BEST-IN-CLASS BCG that is 100% American Made!

  • M16 Style Carrier
    • Machined from 8620 Steel
    • Heat Treated
    • Final Grind Before Plating
    • Blacknitride+™ by H&M
  • 5.56/.223 Bolt
    • Machined from 9310 Steel
    • Heat Treated
    • Shot Peened
    • MPI Tested (Magnetic Particle Inspection)
    • Blacknitride+™ by H&M
  • Billet Gas Key
    • Machined from Solid Billet of 4130 Steel
    • Properly Seated with Grade 8 Fasteners
    • Properly Staked
    • Blacknitride+™ by H&M
  • Cam Pin
    • Machined from 4140 Steel
    • Heat Treated
    • Blacknitride+™ by H&M
  • Billet Extractor
    • Machined from Solid Billet of 4140 Steel
    • Heat Treated
    • Shot Peened
    • Phosphate Coated
    • Extractor Insert Included
    • Viton O-Ring Included
  • Firing Pin 
    • Machined from 8640 Steel
    • Blacknitride+™ by H&M
  • 100% American Made
  • 5

    Posted by J.K on Mar 21st 2023

    As expected, their customer support and shipping speed was amazing! Highly recommended!

  • 5
    Awesome BCG at a Great Price

    Posted by Sabre Firearms LLC on Oct 7th 2022

    I run one of these in all my shop builds, including my Post Sample Select fire MK18. Flawless fit, finish and function!

  • 5
    AC Arms rates BCG 5-stars!

    Posted by Anthony Cervassi on Sep 2nd 2021


  • 5
    Outstanding BCG

    Posted by RUSTY REVOLVER FIREARMS LLC on Aug 5th 2021

    Great price, quick turn around! Proud to offer WLA parts in our builds!

  • 5

    Posted by Justin Stallard on Jul 29th 2021

    These BCGs are solid! I'm making these my standard BCG that are used in my company's builds. All five that I just got in have an immaculate finish and possess a very deep black that is pretty flat, which I like personally. It would be a mistake to overlook this product, I highly recommend.

  • 5
    Great Deal!

    Posted by Mike Brewster on Mar 25th 2021

    Love these! They are well built and are great sellers.

  • 5
    M16 BCG

    Posted by Gaylon McInelly on Mar 10th 2021

    Great product, we use in most of our builds .

  • 5

    Posted by Jim on Mar 7th 2021

    This is a well finished BCG that functions flawlessly. Can't beat it for the price!

  • 5
    Bolt carrier

    Posted by Mark A Mollick on Mar 5th 2021

    Great product and transaction, well made!