i do currently have a G&G max M16 with systema internals, which is getting VERY close in performance to my ICS M4. idk, its not really my type of gun - the m16 - i actually regret buying it. not that its a bad gun, not at all, its awesome! its just not for my game style. - its to long
for that reason, i use my M4 more often, as they are basically the same gun, just one has a shorter barrel.