Looking to trade my g5 preferably for another gas blow back system, feel free to make any offer though. GHK G5 has been used a few times, ran great and still runs really good. Nothing is wrong with the gun itself but two of the mags are leaky. There are 4 black GHK G5 green gas mags and 1 tan mag. The tan mag and one of the black mags are leaky but easily fixable.