This is the perfect accessory for your Gamo Swarm Maxxim .177 Cal, this ten-shot magazine is for use exclusively in select Gamo air rifles featuring the 10X Quick-Shot Technology, like the SWARM MAXXIM .177 Cal. Our new patent-pending technology enables you to shoot up to 10 pellets without reloading - simply break the barrel and shoot for lightning-quick follow-up shots. Rotor numbered, Smooth indexing, high impact polymer base, number of shots left indicator, and empty magazine indicator. Made in Spain.