Piston Seal for Crosman Quest 500, 800,1000, Remington Summit, Remington Genesis, GAMO Expo, 68, 440, 880, 890, Shadow 1000, Varmint Stalker, and BSA Meteor MK VI. Daisy 130A, 131, AccuAir Force 1100, etc.. old part numbers CRSC1K77-002, G12540. Part CRSB18-01-1B was discontinued by Crosman in 2024
