New M16 / AR15 Lightweight Bolt Carrier Group by Brownells

New M16 / AR15 Lightweight Bolt Carrier Group by Brownells
New M16 / AR15 Lightweight Bolt Carrier Group by Brownells

U.S.A.-(Ammoland.com)- The Brownells M16 Lightweight Bolt Carrier Group is purpose-built for AR-15 owners looking to improve aspects of their rifle with a simple component swap, eliminating the need for major component replacement or amateur gunsmithing work.

The Brownells M16 Lightweight Bolt Carrier Group is machined from 8620 tool steel and features a heavy-duty bolt made using 9310 tool steel, which is then magnetic-particle inspected to ensure quality. The bolt is light enough to reduce the overall weight of a lightweight AR build, and the lightness of the entire assembly also reduces the felt recoil of any AR-style firearm.

  • Available with nickel-boron, titanium-nitride or nitride finishes
  • Weighs 8.2 ounces
  • Compatible with AR-15s chambered in 5.56 NATO, .223 Rem., 300 Blackout and .204 Ruger
M16 / AR15 Lightweight  nickel-boron Bolt Carrier Group by Brownells
M16 / AR15 Lightweight nickel-boron Bolt Carrier Group by Brownells
M16 / AR15 Lightweight Nitride Bolt Carrier Group by Brownells
M16 / AR15 Lightweight Nitride Bolt Carrier Group by Brownells

The Brownells M16 Lightweight Bolt Carrier Group ships completely assembled and features the necessary black insert and O-ring around the extractor, as well as a torqued and staked gas key.

The Brownells M16 Lightweight Bolt Carrier Group has been purposely designed for AR-15 owners looking to reduce the overall weight of a lightweight AR build. The Brownells M16 Lightweight Bolt Carrier Group is machined from 8620 tool steel, weighs 8.2 ounces, and is available in nickel-boron, titanium-nitride or nitride finishes. This BCG is compatible with AR-15s chambered in 5.56 NATO, .223 Rem., 300 Blackout and .204 Ruger. Join Paul Levy as he gives an overview of this new product.



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  • 4 thoughts on “New M16 / AR15 Lightweight Bolt Carrier Group by Brownells

    1. You are both correct in what you say. It must have a warranty if it does break. My question is “just what is the warranty”
      Sure ,they replace the part but will I be stuck with a lousy day at the range, a broken part and a no problem just send us the broken part and we will replace it for free. Who pays for the S&H, down time, and any other damage incurred from the part letting go? The manufacturer won’t even talk to you except to tell you that you just voided the warranty by using
      an aftermarket part in the weapon!

    2. With the punishment they take,
      I’d be afraid they’d break !
      Heat and ware and tear of normal use,
      I think will snap at the point where the ,
      side rail with assist cuts and the main
      carrier meet .

      1. There are a lot of lightweight carriers/BCG’s on the market and I’ve not heard any reports of wholesale breakage. Many are in competition guns that see a lot of rounds. I remember people saying the same thing about my aluminum bolt carrier. 30 years ago. 🙂

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