Nice looking and effective - needed to tap threads - Diamondhead T-Brake 5.56 Muzzle Compensator Black 3205

Bought two of these to pair with the Diamondhead rails. They were placed on Criterion 18" barrels. Both threaded a little more than half way on when they started binding. I had to buy a tap, mark depth on the tap (including about 1/2 the thickness of the crush washer, and run the tap. Once I did that, they worked great. I've read of others having similar issues.
The break is effective, looks great, and is easy to align with its triangular shape. Just line up the top of the triange with the gas block. The BCM gas block has a star on it that help with alignment too.