i heard they had some minor problems with the flash supressor popping off the welds
I've heard this as well, but I haven't had any problems with mine and I think you'd have to try pretty hard to pop off the muzzle brake on mine. Another note, I don't think flash suppressor accurately describes the brake on these...more like flash enhancer...you get some awesome fireballs given the short barrel...haha.
but is it rattly in general? how is it with a steel mag?
I wouldn't call them ratty at all. The finish seems about on par with an arsenal/saiga finish (ie that black paint like finish, which frankly I like tha parkerized on my Interarms more). All the parts, less the trigger assembly are matching numbers and so the fit of everything is very good (I certainly have no complaints there). Metal mags work without any trouble (I don't think I have a picture on hand, but most of my mags are metal and all work great). I've heard people say it's hard to get a 30rd mag in the foregrip but I certainly haven't had any problems with it (I honestly only have troubles with the 20rd Tapco mag it came with). I like the bakelite mags since they're simply lighter, I like bakelite, and they're easier to change the floorplate on to ensure 922r compliance... which is in my mind the one draw back to the AMD-65 (2 mag parts have to be US made for compliance, though that's not a huge issue and it's up for debate if the end owner needs to worry about it, but I like to cover my bases).
that's gotta be awkward with the sling like that. have you ever seen an echo 93 sling mount?
It's not as awkward as it looks, but that said, I wish it did have a rear sling mount, so I appreciate the link to the echo 93 mount...I'm going to look into getting one, the only potential problem I can think of is the stock release botton is on the bottom of the receiver (I'll send them a messege to ask about what would work).
If you have any other questions, feel free to PM me.