Crosman AK1 Full Auto Air Rifle Magazine - With the Crosman Full Auto AK1 BB air rifle firing 1400 rounds per minute you might want to pick up a few of these AK1 Magazines! This extra mag spring feeds 25 BBs for rapid-fire action and houses two Powerlet CO2 cartridges. Spring Feeds 25 BBs For Rapid-Fire Action Holds Two Powerlet CO2 Cartridges Compatible With The Crosman Full Auto AK1