hey guys , i just picked up a GHK PDW. i wanted to see if any of you guys here have it too and if so what type of mods or accessories have you made or gotten? post pics, i'd like to get ideas for mine i'm adding some stuff to mine , i'll post pics as soon as i'm done. ALSO : i know that they say most WA style m4 gas mags will work , but do you guys who own the gun know what ones fit well and work well? i was thinking of getting the gas pmags but i'm not sure if the will A) fit and B) if the M4 bolt lock is removed from the mag will it still work.