I'm having a problem. I have a clamp on style gas block and free float handguard. The handguard is a particularly slimline model and while the gas block does fit inside the handguard, it barely fits. The handguard is mlok style, and the screw heads for the clamp on block come within a few hundredths, maybe even a few thousandths, of contacting the gas block. The handguard can easily flex into the screw heads.
I need a new gas block and I'm trying to avoid a set screw model if I can. My barrel is nitride treated, which I suspect might cause problems if I tried to dimple it for set screws. In any case, I don't want to order anything without knowing it will fit.
I'm told that DD's clamp on is one of the smallest, so I'm wondering about its exact dimensions. Specifically, I'm wondering about total height, and distance from the center of the bore to the bottom of the block. Or distance from the bottom of the bore to bottom of the block...that will probably tell me the same thing in terms of fitment.