Brownells M16 Lightweight Bolt Carrier Group Nitride

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Brownells M16 Lightweight Bolt Carrier Group Nitride - Bolt Carrier Group for AR-15 - view 1
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Overview

The Brownells M16 Lightweight Bolt Carrier Group is designed for the 5.56 NATO caliber, featuring a nitride finish that enhances durability and corrosion resistance. This M16-style carrier group is optimized for reliable cycling in various AR-15 configurations, making it an essential component for builders looking to achieve consistent performance. You’ll frequently find this BCG in carbine gas system builds, where its lightweight design helps improve overall cycling efficiency.

Specifications

MPNCRC556-LW-016
Caliber5.56 NATO
FinishNitride
StyleM16

Available Merchants(1)

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$114

Build history on GunPartPicker

Builders have been adding the Brownells M16 Lightweight Bolt Carrier Group Nitride to their builds on GunPartPicker since February 2026. All time, it ranks #295 of the 445 bolt carrier groups builders have added.

It was hard to find in August 2026, in stock on only 6 of the 12 days we checked, and today the one retailer we track is out of stock. The best price drifted down from $131.99 to $113.71 over August 2026 without a real sale. Listed prices start at $113.71 at Brownells for when it comes back.

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Frequently Built With

The part most often added in each category by the 5 builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

87.5%
AR-1587.5%
AR-1010%
AR-92.5%

Caliber

71.5%
5.56 NATO71.5%
.223 Wylde9.3%
300 Blackout7.8%
.308 Win4.1%
9mm1.7%
Other5.3%

Gas System

50.4%
Mid-Length50.4%
Carbine26.1%
Rifle11.3%
Pistol11%
Blowback0.9%
Other0.3%

Builds Featuring This Part

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Builds in the community that include the Brownells M16 Lightweight Bolt Carrier Group Nitride

BuildPartsTotal
14.5" build build
14.5" build
11$1102.10
aero precision 14.7" build build
aero precision 14.7" build
23$2785.19

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