Norinco M14 muzzle thread?

[lerch641]

So I'd like to swap out the flash hider on my M14, however, does anyone know if my Norinco from 1994 has the same muzzle threads as an proper M14 or an M305?

Thanks for any help.

 

[Chooie]

I believe they are the same norcs are metric threads. The thread on a usgi barrel are very similar i have a usgi castle nut on my norc barrel.
I think thats what you were asking .

 

[notsorichguy]

The thread pitch is close..... But not the same.

Over the last 2 months I've had 3 barrels that need the threads tweaked because someone force matched the wrong threaded castle nut into the barrel threads......

The barrel splines, that the FH slides into are the same, castle nut threads are close, but not the same.