Our Steel Low Profile Gas Blocks will fit almost any hand guard design. Minimal-profile replacement for factory front sight/gas block won’t interfere with extended-length tactical forearms, while ensuring proper function of gas system for reliable cycling. Protrudes only .420" above barrel, covers less than 1" of barrel length, and adds only 1.4 oz. of weight. Compatible with M4-style carbines and M16A2/A3/A4-style rifles with any length, .625" O.D. barrel. Two steel setscrews keep the block securely anchored to the barrel to prevent shifting even under the force of full-auto recoil. QPQ Finish provides the best corrosion protection and gives a smooth black color that matches Nitride, Melonite and QPQ barrels.
Adjustment screw is located on the front of the gas block for easy adjustments. The adjustment screw clicks and locks in place to make sure your settings do not change. Easy adjustments with 1/4 turn increments for fine tuning!
.625 Adjustable Steel Gas block
X2 Set Screws
X1 Gas Tube Roll Pin