MetalTac M-Series Airsoft Gun Magazine Thermal High Capacity Magazine 300 Rd Fast loading wheel Ultra durable (Black) Thermal Magazine High Capacity 300 Rd with nice black finish Used for M4 / M16 style airsoft guns, comes with nice thermal molded design Loading trap door located at top and winding wheel at bottom for quick reloading Tokyo Marui design. Compatible with TM, G&G, CA, LT, JG, KWA, Echo1, ICS, any other Tokyo Marui style. MetalTac 30 Day Warranty