Have NHM90 with threaded muzzle w/slant brake(Chinese I think). To legally put on a Romy side folder I need?: U.S. parts 1.pistol grip=1 2.trigger group=3 3.forend upper&lower=1 4.muzzle brake=1 Is this correct? Or do I need one more part. The brake issue is confusing me, I think.
A stamped receiver AK requires 5 US parts, 6 with a muzzle device:
4. Pistol Grip
6. Upper and lower handguards
7. Gas piston
A US Made muzzle device would be 1 more.
And putting that wire side folder on a 20" barreled NHM-90 seems like a really poor idea.
NHM-90 is 16".. the NHM-91 is 20"...