well i just got a mak-90 in trade, i am kinda new to the ak scene and i am trying to make sure it is 922r compliant before i bring it out. as far as i can tell the handguards, pistol grip and stock are all us made but none of them say "made in the us" or have a brand name on them. so how can i tell? the mags are pro-mags so i know those are american made. any info would be great. picture here: http://imageshack.us/f/594/dscf3458w.jpg/ if you need any close up pics let me know.