I recently got these midcaps for my G&P M16, but they also fit my mates and dad's G&Gs with no problems at all. They drop out the gun when you press the mag release, unlike some mags which are a tighter fit so you have to pull out, they feed perfectly. They're grey in colour, I bought thinking they were black, but quite like the grey.
The king arms midcaps are good quality but need alot of breaking in, also (mine atleast) they seem to be abit fussy with certain BB's, they don't seem to agree with Z1's own brand of BB at all, they jam and i don't get the full amount in each magazine (only get about 90/100 in) But if i use Blaster 2.5's i can fit about 125 in each mag and they don't misfeed once.
The king arms midcaps are good quality but need alot of breaking in, also (mine atleast) they seem to be abit fussy with certain BB's, they don't seem to agree with Z1's own brand of BB at all, they jam and i don't get the full amount in each magazine (only get about 90/100 in) But if i use Blaster 2.5's i can fit about 125 in each mag and they don't misfeed once.
I have 3 magpul 120rd mags and they are so much better than the 2 ICS hicaps that came with the gun, I think I may not be using the hicaps unless I buy a few magpul hicaps.