2a Steel Gas Block .750 Bore Blk

The 2A Armament 2A Steel Gas Block .750 Bore Black is a low-profile gas block designed for AR-platform rifles where space constraints demand a compact solution. Manufactured from 4140 steel with black phosphate coating, this gas block delivers the same functional design as 2A's titanium offerings while providing a cost-effective, durable alternative. The two-screw clamping design ensures secure installation without permanent modifications to your barrel, making it ideal for shooters who value quick changes and adaptability across multiple uppers.

Built from 4140 steel and blasted with black phosphate finish, this gas block resists corrosion while maintaining a clean aesthetic under tactical handguards and free-floating tubes. The .750 bore diameter fits standard mid-length and rifle-length AR gas tubes, and the compact profile leaves ample room for rail systems, optic mounts, and accessory placement. Two set screws with blue locking compound (recommended during installation) provide positive retention during extended shooting sessions, whether on the range or in the field. The lightweight design at 0.13 pounds contributes minimal mass to the front end, preserving handling characteristics and reducing harmonic disturbance.

This gas block suits AR builders and shooters prioritizing modularity and value without compromising durability. It performs equally well on duty rifles, competition platforms, and transitional training builds. The low-profile design makes it the practical choice for anyone running suppressed systems, precision carbines, or short-barreled uppers where traditional gas blocks create clearance issues. Installation is straightforward: align the bore with your gas tube, tighten both set screws evenly, and apply blue threadlocker to prevent vibration-induced loosening during firing.