I have a colt MT6400C and was wondering if any company produces a muzzle brake/Comp that you can swap out one for one or do all require the barrel to be threaded.]
Thanks
I don’t know of any. Whatever you do, don’t install a set screw device. I have seen dozens blown off the guns. I even found a 6400C once. Colt had pinned it very shallow, the pins were bent but still attached to the device.
Give adco a call, I think they charge $45.00 to thread a barrel.