Shaped similarly to an extended G-Series magazine, but holding 300 rounds filled via a window on the top of the mag.Once filled it need to be primed by rotating the wheel on the bottom, and letting the magazine feed rounds into your weapon. This is the perfect purchase for anyone who runs a G&G ARP 9 Airsoft Electric Gun and wants more magazines to let them wreck havoc for longer before returning to the safe zone to reload.

Features:

• For the G&G ARP-9
• Holds 300 BBs
• Rolling wheel on the bottom of the magazine
• Openable cover on the top of the magazine to fill with BBs