Brownells Military Barrels AR-15 20" A1 Rifle Barrel 1-12 Twist Assembly
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Brownells
Overview
The Brownells Military Barrels AR-15 20" A1 Rifle Barrel is designed for precision and reliability in your builds, featuring a lightweight profile that enhances maneuverability without sacrificing performance. With a 1:12 twist rate, this barrel is well-suited for stabilizing lighter projectiles, making it ideal for a variety of ammunition options in the 5.56 NATO caliber. This barrel typically appears in builds that utilize a rifle gas system, providing a smooth cycling experience for the shooter.
Specifications
Brownells Military Barrels AR-15 20" A1 Rifle Barrel 1-12 Twist Assembly
Build history on GunPartPicker
Builders have been adding the Brownells Military Barrels AR-15 20" A1 Rifle Barrel 1-12 Twist Assembly to their builds on GunPartPicker since February 2026. All time, it ranks #242 of the 821 barrels builders have added.
It 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.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 36 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Billet Upper Receiver
Anderson Manufacturing 6061 Aluminum Charging Handle
Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group - Mystic Gold
PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine
Wilson Combat AR-15 Rifle Length Gas Tube Stainless Steel
Spike's Tactical Crr Quad Rail AR-15 Handguard - 15"
Builds Featuring This Part
See all 1 →Builds in the community that include the Brownells Military Barrels Ar-15 20" A1 Rifle Barrel 1-12 Twist Assembly
| Build | Parts | Total |
|---|---|---|
 | 9 | $1090.74 |
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