SERVICE KITS FOR UMAREX RIFLES & PISTOLS ALL KITS INCLUDE OPTIONAL GREASE AIR MAGNUM 850 KITS INCLUDE UPRATED BOTTLE SEALS AIR MAGNUM 850 KITS ALSO INCLUDE MAGAZINE SEALS PHOTO ABOVE SHOWS AIR MAGNUM 850 KIT OTHER KITS MAY VARY IN SPECIFICATION BUT WILL FIT YOUR CHOICE