Wilson Combat TRLPGB Lo-Profile Gas Block .750" 4140 Chromoly Steel Black Phosphate

The Wilson Combat TRLPGB is a precision-machined lo-profile gas block designed for AR-platform rifle builds where a compact, low-profile gas system is desired. Manufactured by Wilson Combat, this gas block is built from hardened 4140 chromoly steel and finished with a corrosion-resistant black phosphate coating for long service life under hard use.

The TRLPGB is precision bored to .750" to fit barrels with a .750" gas block journal, and its lo-profile design keeps the overall height minimal so it sits cleanly under free-float handguards without adding bulk. The block is .950" long and is secured to the barrel with hardened set screws for a tight, reliable lock-up, and it includes a gas tube roll pin for completing the gas system installation.

Whether you are building a custom AR-15 or refurbishing an existing rifle, the Wilson Combat TRLPGB offers the precision fit, hardened steel construction, and low-profile geometry needed for a clean, professional gas system installation.