AR-15 M16A1 Retro Barrel Assemblies - Brn AR-15/M16A1 Retro Carbine 5.56mm 11.5" 1-7 Bbl Assembly

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Brownells Ar-15 M16a1 Retro Barrel Assemblies - Brn Ar-15/M16a1 Retro Carbine 5.56mm 11.5'''' 1-7 Bbl Assembly - Barrel for AR-15 - view 1
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Overview

The Brownells AR-15 M16A1 Retro Barrel Assembly features an 11.5-inch barrel designed for the 5.56 NATO caliber, making it a solid choice for those looking to replicate the classic M16A1 build. With a carbine-length gas system and a 1:7 twist rate, this barrel effectively stabilizes a variety of bullet weights, ensuring reliable performance whether you're at the range or in a tactical situation. This barrel assembly is commonly found in retro-themed builds that aim to honor the original design of the M16 platform.

Specifications

MPNBABR557461M
Caliber5.56 NATO
Twist Rate1:7
Gas System LengthCarbine
Barrel Length11.5

Available Merchants(1)

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$200

Price and stock

The Brownells AR-15 M16A1 Retro Barrel Assemblies - Brn AR-15/M16A1 Retro Carbine 5.56mm 11.5" 1-7 Bbl Assembly was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $199.99 at Brownells for when it comes back.

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