INSTRUCTIONS 1077 ADAPTER WITH AIRSOURCE™ CO, CYLINDERS THIS ADAPTER IS FOR USE ONLY WITH AIR SOURCE CO CYLINDERS AND CROSSBOWMAN'S MODEL 1077 AIRGUNS MANUFACTURED AFTER MAY 1999 REFER TO OWNER'S MANUAL PACKAGED WITH YOUR MODEL 1077 FOR PROPER OPERATION AND COMPLETE WARNINGS This adapter will allow vou to use Ar Source CO; cylinders with your Macrocosm Model 1077 airguns. It's easy to ol an notarial 6. You can counting to use 12 gram CO; Copperhead POWERLETS® with your airguns.