The Troy Industries Low Profile Steel Gas Block is expertly designed for M4 carbines and M16A2 A3 and A4 rifles ensuring a seamless fit with rail systems that extend over the gas block. Crafted from hardened steel this robust component features a sleek black oxide finish offering both durability and a streamlined look. Made in the USA the .750-inch model epitomizes precision manufacturing making it an ideal choice for firearm enthusiasts seeking reliable and high-quality performance.