20″ 5.56 NATO 1:7 Twist Parkerized Heavy Rifle Barrel
The Black Rifle Depot 20″ 5.56 NATO Heavy Barrel is built for shooters who want a durable, full-length AR-15 barrel at a strong value. BRD sources its private-label barrels from established U.S. manufacturers and purchases in volume to help keep pricing competitive without sacrificing quality.
This barrel features a heavy profile, rifle-length gas system, 1:7 twist, .750″ gas block journal, and 1/2×28 muzzle threads. The Parkerized finish provides a durable exterior treatment, while the 5.56 NATO chamber supports a wide range of commonly available ammunition.
Features
- 20″ heavy-profile AR-15 barrel
- Chambered in 5.56 NATO
- 1:7 twist rate
- Rifle-length gas system
- .750″ gas block journal
- 1/2×28 muzzle threads
- Parkerized finish
- American made
- Sourced from Tier 1 U.S. manufacturers
- Manufactured under ISO 9001 or better quality standards
- BRD MOA guarantee on barrels 16″ and longer when used with properly weighted match-grade factory ammunition from a rest
- Strong value for new builds and replacement-barrel projects
Specifications
- Brand: Black Rifle Depot
- Product Type: AR-15 Barrel
- Platform: AR-15
- Caliber: 5.56 NATO
- Barrel Length: 20 in.
- Barrel Profile: Heavy
- Twist Rate: 1:7
- Gas System Length: Rifle
- Gas Block Journal: .750 in.
- Muzzle Thread: 1/2×28
- Finish: Parkerized
- Country of Origin: USA



