Anyone know how the Norinco M305 muzzle threaded? Does it accept regular AR-10 muzzle brake?
It isnt threaded at all , the barrel has 3 grooves cut into it and the flashhider has 3 raised lugs inside.The castle nut threads onto the barrel and is held in place with a set screw.
The inside of the flashhider looks like this ...you can see one of the raised lugs in this pic.
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Its not going to accept an AR10 muzzle break. You would have to cut and have the barrel threaded.
Any flash hider you put on it now will have to be held on with your castle nut. So something similar to whats on it now. There are a few variations like the one chalk river posted.
Mandown , check with spcamno as he has then for sale
http://www.canadiangunnutz.com/forum/showthread.php?t=730305
Where can i get this??