Stag Arms 20" 5.56 Chrome-Lined/Phosphate HBAR 1:7 Rifle Length Barrel w/ FSB - STAG400076

Stag Arms 20″ 5.56 Chrome-Lined/Phosphate HBAR 1:7 Rifle Length Barrel w/ FSB

The Stag Arms 20″ 5.56 HBAR barrel is built for shooters who want classic rifle-length performance with modern durability. A chrome-lined bore and chamber help resist corrosion and reduce fouling for easier maintenance, while the phosphate exterior adds wear protection for hard-use conditions. The heavy barrel (HBAR) profile improves stability and heat management, supporting tighter groups during longer strings and better consistency at distance.

This barrel includes a pinned front sight base (FSB) for traditional builds and dependable alignment, paired with a rifle-length gas system for smooth cycling. With a 1:7 twist, it’s optimized for heavier 5.56 projectiles (commonly 62–77gr), and the 1/2×28 muzzle threads keep it compatible with common muzzle devices.

Features

• Chrome-lined bore and chamber for longevity and reduced fouling
• Phosphate finish for corrosion and wear resistance
• HBAR profile for stability and heat control
• Pinned front sight base (FSB) for classic AR configurations
• Rifle-length gas system for smooth function
• 1:7 twist supports heavier 5.56 loads
• 1/2×28 threads for common muzzle devices

Specifications

• Caliber: 5.56 NATO / .223 Rem
• Barrel Length: 20″
• Gas System: Rifle Length
• Gas Block Journal: .750″
• Twist Rate: 1:7
• Muzzle Thread: 1/2×28
• Material: Chrome-Moly Vanadium Steel
• Weight: 56 oz
• Finish: Chrome-Lined (bore/chamber) + Phosphate exterior
• Platform: AR-15