ok,i'm looking for a little help/advise on installing a yhm phantom flash hider. i finally received it after a long time on back order. odd thing is it doesn't want to thread more than a couple turns. looking inside the threads continue into the hider but it just locks up and stops turning/threading. i think if i were to use a wrench and force it it may destroy some threading. anyone else ever experience anything like this. i'm thinking i may have to take the a1 off my plr16 to see if it fits those threads ok but thought i'd post up a question here first. thanks for your thoughts.