King Arms 15rd CO2 Magazine for M1A1 GBB Rifle

King Arms 15rd CO2 Magazine for M1A1 GBB Rifle Full Metal Construction Suitable For King Arms M1 Carbine / M1A1 Paratrooper Series Airsoft gas Blow Back GBB Rifle 15 Rounds Loading capacity CO2 Magazine Magazine which can load CO2 Bottle for extra power