Gamo replacement cylinder rear cap for the following air rifles:

Black Bear
Black Shadow
Black Shadow IGT
Bone Collector Bull Whisper
CF-Diopter
CFX Royal
CSI
Deltamax Force
Fast Shot 10 X IGT
Forest
HPA
Hunter Elite
Hunter Evo
Hunter 220
Hunter 440
Hunter 440 AL
Hunter 440 AS IGT
Hunter 440 RUM
Hunter IGT
Hunter Pro
Hunter Sport
Maxxim Elite
Maxima Vario
Quicker 10
Replay 10
Shadow 1000
Shadow 1000 RUM
Shadow CSI
Shadow DX
Shadow IGT
Shadow RSV
Shadow Sport
Shadow Supreme
Socom
Socom Storm IGT
Stutzen
Varmint Hunter
Varmint Hunter Classic
Varmint Hunter SAT Trigger
Varmint Stalker
Varmint Stalker Barricade
Varmint Stalker Deluxe
Venari
Viper
Viper Desert
Viper Express
Vipermax
Viperskeet
Whisper
Whisper DX
Whisper Sting