Stepped Design Suitable for Scorpion Cadet (Gauge at front of rifle) Goldstar SE, Coyote & Buccaneer (Export Only) and GAMO Coyote. Standard 1/8″ BSP male thread for direct fitting to a flexible fill line or one of our Quick Coupler Plugs. Complete with two spare ‘O’ rings and a sachet of silicone grease.