Brownells Barrel 5.56mm NATO 18 1-7 Rifle Length Black
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Brownells
Overview
The Brownells 5.56mm NATO barrel features an 18-inch length with an MK12 profile, designed to optimize accuracy and performance for precision shooting. With a rifle-length gas system and a 1:8 twist rate, this barrel stabilizes a range of bullet weights effectively, making it suitable for various ammunition types. This barrel commonly appears in builds that prioritize precision and reliability, particularly those configured for 5.56 NATO caliber.
Specifications
Brownells Barrel 5.56mm NATO 18 1-7 Rifle Length Black
Build history on GunPartPicker
Builders on GunPartPicker first added the Brownells Barrel 5.56mm NATO 18 1-7 Rifle Length Black to a build in February 2026.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $249.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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