Internal threads cut too shallow. would not thread onto barrel. - Breek Arms Plan B Scorch 3 Prong Flash Hider

Internal threads are cut too shallow. Would not thread onto barrel all the way. Would not even make contact with included washer. Tried on 4 different barrels including 2 AAC barrels, 1 Faxin and 1 Noveske. Was 3 to 4 full threads too shallow. Returned. Didnt get option to replace with a other one.