I know you guys are probably thoroughly sick of seeing ignorant questions, but I mean it this time.
Well, maybe not the ignorant part.
I have a post-ban Bushy upper with the M4 profile barrel, with the permanently attached (and highly obnoxious) Mini-Y brake on it. I also have a Phantom flash hider, acquired locally. How much (this is where the "excuse the ignorance part" comes in, just want to be sure), to attach the Phantom to the barrel? Is it OK if I send the whole upper? I'm not a AR mechanic and have no idea how to take the barrel off. From reading the website, I just mail it off to you guys, then figure out how much shipping is and add that to the total bill, right?
Thanks in advance.