Got a brand new AK74 yesterday from kvar it arrived and I took the muzzle brake off and it was extremely tight to get off. I examined the threads on the muzzle and they appear to be a little damaged...gotta love seeing that on a new gun. anywho. I believe its a 24mmx1.5 thread on the muzzle but if some body could help me out that would be great. I don't own any dies nor have I ever used them.