We have one of the largest selection of AR-15 Muzzle Devices at the some of the best prices online. All of our AR-15 Flash Hider and Muzzle Brakes are 100% made in house and are Made in the USA (as well as our AR-15 Fake Suppressors). Our AR-15 Muzzle Devices are made of steel or aluminum and come in different thread patterns for all calibers including 5.56, .308, .300 blackout, 7.62×39, 7.62×51, 5.45, .50 Beowulf. If you can name it, we typically have it.