just a quick review on SRC M4A1 Hi-cap mags.
-full metal
-300rds capacity
-wind up
just a standard Hi-cap mag made by SRC for there M4 series of rifles good mags recomended if you want to carry lots of ammo for your m4, these magazines should be compatiable with any tokyo marui M4s and M4'S with that are TM compatible
pros
-can carry lots of ammo for TM compatible M4's
-full metal
cons-
-wont feed last 30-40 rds since its a Hi-cap
-pellets inside the mag rattle around when moving.
-full metal
-300rds capacity
-wind up
just a standard Hi-cap mag made by SRC for there M4 series of rifles good mags recomended if you want to carry lots of ammo for your m4, these magazines should be compatiable with any tokyo marui M4s and M4'S with that are TM compatible
pros
-can carry lots of ammo for TM compatible M4's
-full metal
cons-
-wont feed last 30-40 rds since its a Hi-cap
-pellets inside the mag rattle around when moving.