Fortis Gas Block .750 Blk

The Fortis Gas Block .750 Black is a low-profile gas block engineered for precision AR platforms running .750-inch diameter barrel extensions. Manufactured in America by Fortis Manufacturing, this component is purpose-built to mate seamlessly with modern match-grade barrels while maintaining a compact footprint that minimizes sight picture obstruction and profile height on the upper receiver.

The block secures to the barrel via dual set screws, delivering repeatable clamping force without the complexity of journal-style mounting. This two-set-screw design allows straightforward installation and adjustment, critical when fine-tuning gas tube alignment on custom builds. A roll pin is included with the gas block to accommodate pinning applications where set-screw retention alone is insufficient. The low-profile geometry keeps overall height minimal, preserving sight radius and improving ergonomics on carbines configured with upper-mounted optics or iron sights.

This gas block is ideal for precision shooters, competitive rifle builders, and operators who demand component reliability without unnecessary bulk. It's particularly suited for match-grade rifle builds, precision rifle competitions, and custom uppers where weight and sight-line clarity matter. The .750 bore diameter is standard across most modern AR-15 mid-length and rifle-length gas systems, making this block compatible with current-generation barrels from quality manufacturers.

For builders selecting components with the precision-first mindset, the Fortis low-profile gas block represents the intersection of American manufacturing and practical design—minimal features, maximum reliability, and no compromise on fit.