Luth-AR .750, Adjustable Gas Block, Black

Designed to fit barrels with a .750 diameter, this high-quality piece helps to improve the performance of your firearm. It's made from durable materials and easy to install, making it a must-have for any AR owner. Plus, its low-profile design won't add unnecessary weight or bulk to your rifle. • Made from 4140 steel • Black Nitride finish • 8-32 x 3/8 Gas Adjustment screw;Two 1/4-20 x 3/16 Set Screws • 1 Roll Pin • Made in the U.S.A.