KAK Industry Low Profile Gas Block .750" AR-15 - Phosphate Steel

The KAK Industry Low Profile Gas Block (AR15-UP-001) is a fixed, non-adjustable gas block built for the .750" gas block journal found on most standard and heavy-profile AR-15 barrels. Its slim low-profile silhouette seats tight against the barrel so the entire gas system tucks neatly inside a free-float handguard without interfering with optics mounting or sight picture.

The block is machined from 4140 steel and finished in a corrosion-resistant manganese phosphate coating for durability under the heat and fouling of direct impingement cycling. The matte black finish blends with most phosphate and black nitride barrels, bolt carrier groups, and other AR-15 components for a clean, uniform build.

Installation is straightforward: the gas block secures to the barrel with two knurled set screws, and the included gas tube roll pin locks the gas tube in place. The bore is fully honed and deburred for smooth, reliable gas flow, making this a drop-in component well-suited to AR-15 builds, repairs, or gas system replacements.

Whether you are assembling a new rifle from the upper out or replacing a worn factory block, the KAK Industry AR15-UP-001 delivers the strength, fit, and finish of a quality low-profile gas block at an accessible price point.