Bought an m14.ca style muzzle brake. Apparently I have to cut (or gunsmith) cut the barrel to 18.5" and thread it? I kinda like having the original length barrel though. Just wondering what my options are. I'm a little confused as what to do.

Mine threads on and doesn't care what the length is.
The original flashiders on 22 in barrels have splines inside them that line up on the barrel . Springfield armory sells one that fits .
Top rifle is 18.5 factory shorty with springifield armory brake ( it will fit your rifle ) ,
2nd one is a Dominion arms Socom 18 with a threaded reversible flashider ,
3rd is a 22 inch barrel cut down and rethreaded to 1/2 x 28 TPI , Ellwoods did it for $75 I think.
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Just to confirm, the Springfield Armory unit will fit a Norc? Even the 22in version?




























