One Horse OH-GB01 Low Profile Steel Gas Block .750 Dia

The One Horse OH-GB01 is a low-profile steel gas block designed for AR-15 pattern rifles with a .750 inch barrel journal diameter. Machined from high-strength steel, this compact gas block delivers the durability needed for reliable direct impingement operation in demanding shooting conditions.

The low-profile design sits close to the barrel to keep the sight radius clean and free up handguard interior space, making it a straightforward drop-in for free-float handguard builds. The block clamps onto .750 in diameter barrel journals and is secured with set screws (included) for a solid, slip-free fit under sustained fire. A standard gas tube roll pin hole accepts conventional AR-15 gas tubes, making installation a simple swap for worn or undersized factory blocks.

Finished in a low-reflectivity black coating, the OH-GB01 blends with most barrel and handguard finishes. The compact, lightweight footprint keeps it unobtrusive on any build, and the all-steel construction ensures it can handle the heat and pressure of extended shooting sessions. Built by One Horse LLC, this gas block is a reliable, no-nonsense component for any AR-15 build or replacement.