Thanks Kai_Wolf, i'm sure i made a good acquisition buying KJW TK.
Previously i had one AGM M4 GBB but after 1-2 months i sold it, the mags ware way to heavy (the AGM ones) and i saw that i had to put more money in it to make it playable.
Anyway, i have to wait till the weather will be better here (right now is -14 grades Celsius and its a heavy wind), and also, to receive the other spare mags and the conversion parts that i ordered (i want to make a CASV Vltor look like) and i will put some pics here.
Sorry if it was posted, but you guys know any easier way to reload the mag (not with