So I really like some of the A5 riot gun setups I've been seeing around (looking at you @Shadowrider). So my question is if I pick one up that has a 4 inch cutts comp on it, can I have the barrel cut to 14.x inches then have the cutts comp permanently attached to bring it back over 18 inches? Or would that be an sbs/aow/DD? I figure if an AR can have a 14.5 inch barrel with a permanently attached 1.5 inch break and still be legal wouldn't this also?