BROWNELLS M16 5.56 Lightweight Bolt Carrier Group Nickel Boron

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

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.


Right Hand only. Will not work in left handed rifles.

Will not work with LAW Tactical bcg extension.

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BROWNELLS M16 5.56 Lightweight Bolt Carrier Group Nickel Boron

Product Code: 078-000-405
Reward Points: 130
Only Ships to: Selected US States
Availability: Out-Of-Stock

MSRP: 139.99
MPN: 078-000-405
Material: 8620 Tool Steel
Condition: New
Country of Origin: United States
Package Quantity: 1
Shipping Restrictions: Ships only to US States where not restricted
Carrier Restrictions: No
DOT Regulated: No
Calibers: 5.56mm NATO, .223 Remington, .204 Ruger, .277 Wolverine, .300 AAC Blackout
Language: Engllish

  • $129.99

  • Price in reward points: 7800
Expected in stock:05 Oct 2019
Preorder deposit:100%

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