JE Machine Tech TS-GB4 AR-15 .750 Low Profile Steel Gas Block

The JE Machine Tech TS-GB4 is a low-profile steel gas block purpose-built for the AR-15 platform. Machined to a .750 in diameter, it sits low enough to tuck cleanly under most free-float handguards without the bulk of a traditional front sight base.

The block is locked to the barrel with two hex-head set screws and is compatible with mid-length, carbine-length, and rifle-length gas systems. It supports 5.56 NATO, .223 Remington, and .300 AAC Blackout calibers on any .750 diameter barrel.

Weighing just 2 oz, the TS-GB4 is a lightweight, no-frills replacement or build component for any AR-15 upper assembly. Proudly made in the USA.