20" 5.56 Government Contour 1:9 Rifle Length Barrel w/ FSB - Phosphate - 25398

20″ 5.56 Government Contour 1:9 Rifle Length Barrel w/ FSB – Phosphate

Reliable Performance with Classic Design

The OEM Black Rifle Depot 20″ 5.56 Government Contour Barrel is designed for shooters seeking reliable performance and traditional aesthetics with the addition of a fixed front sight base (FSB). This barrel features a government contour, a 1:9 twist rate for optimal stabilization of a wide range of bullets, and a durable phosphate finish that enhances corrosion resistance. The rifle-length gas system and 0.750 gas block journal ensure smooth cycling and consistent operation. Sourced from top-tier American manufacturers, this barrel is built to ISO-9001 standards and carries a MOA guarantee for barrels 16″ and longer, providing outstanding value for your next build.

Key Features

• 20″ Government Contour – Balances weight and performance for reliability and stability.
• Fixed Front Sight Base (FSB) – Traditional design for enhanced accuracy and durability.
• 1:9 Twist Rate – Optimized for stabilizing a wide variety of bullet weights.
• Mag Phosphate Finish – Provides long-lasting corrosion resistance and a classic appearance.
• Rifle-Length Gas System – Designed for reliable cycling and reduced recoil.
• American Made – Crafted by trusted Tier 1 manufacturers in the United States.

Technical Specifications

• Finish: Mag Phosphate
• Barrel Profile: Government /SOCOM
• Gas System Length: Rifle
• Gas Block Journal: 0.750 inches
• Barrel Length: 20 inches
• Chamber: 5.56 NATO
• Twist Rate: 1:9
• Muzzle Thread Pattern: 1/2×28

Experience reliable performance, consistent accuracy, and classic aesthetics with a durable government contour barrel. The phosphate finish and American-made quality ensure long-lasting value.

FSB is F-Marked
*Front sight post, detent, and spring are not included* *Barrel is not chrome-lined*