Going to make an attempt at removing the flash hider on my MPX Copperhead, the black version with the threaded barrel. Since the barrel is short, I can't use my vise to clamp the barrel, without removing the barrel first. Wondering what the best method would be to remove the flash hider... Should I remove the barrel from the receiver, or would it be easier to clamp the upper in the vise and remove the muzzle? The barrel is so short, I'm not sure if I'd be able to secure it properly if I removed it from the receiver. Thanks for the advice.