geting a AA upper in 6.5 grendel, the hunter version 19.5". i want to put a suppresser on it. i dont know much about the suppressers so i thought i would ask on here. the barrel is threaded for 3/4-28tpi. the only flash hider i found that would fit was the ones on the AA website. do they make suppressers for that thread? or better yet do they make flash hiders for that thread that suppressers can just screw on to? will puting a suppresser on mess up my rifiling or barrel in anyway? do i need to get a certin gas block? thanks for the help