The US gun industry really needs a shake up in term of the thread options it offers to its consumers.
Most European suppressor manufacturers are able to offer their products in the following threads:
1/2-20,1/2-28,13x1,14x1, 9/16-24,15x1, 5/8-24 ,16x1, 17x1, 18x1 , 18x1.5 ,3/8-24...etc
A cnc...