One Horse LLC 7.5-inch Barrel, 1-7 Twist, 5.56 NATO

The One Horse LLC 7.5-inch Barrel (brand part no. OHBR07) is chambered in 5.56 NATO with a 1-in-7 twist rate, a fast twist that stabilizes a wide range of 5.56/.223 bullet weights. At 7.5 inches, it’s sold as a barrel only, with no upper receiver, bolt, or lower included.

Key Specifications

• Measures 7.5 inches long.
• Chambered in 5.56×45 NATO.
• Uses a 1-in-7 twist rate, suited to a wide range of 5.56/.223 bullet weights.
• Sold as a barrel only, with no upper receiver, bolt, or lower included.

Frequently Asked Questions

Does this barrel make my AR-15 an SBR? No. A barrel sold on its own is not a regulated firearm. Installing this barrel on a complete, already-assembled rifle lower with a shoulder stock requires an approved ATF Form 1 before assembly; building it as a pistol with no stock avoids that requirement entirely.

Does this include a bolt or upper receiver? No, this is a bare barrel only; the upper receiver, bolt carrier group, and lower are sold separately.

What twist rate does this barrel use? 1-in-7, suited to a wide range of 5.56/.223 bullet weights.

Buy the One Horse 7.5-inch Barrel, 5.56 NATO

Order the One Horse LLC 7.5-inch Barrel through our One Horse LLC lineup at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop, along with more rifle parts.