The quality of these brakes is on par with the brakes we carry from our Canadian-made suppliers.
The Blast Diverter has a slender and highly efficient muzzle brake that is threaded to accept the included screw-on 'shell' that, when attached, directs most of the muzzle blast and noise forwards!
Model: CMMB251-369MB
We recommend a screwdriver with a few wraps of duct tape around the shaft - insert through the 'gills' of the brake and then twist on to crush the washer and keep it all straight and tight. Just ensure that you don't turn too far - if you back off you will need a new crush washer! See pic for correct install orientation.