Bintac special desinged product for all AEA air rifle on tube to install picatinny raill bipod and hand guard 41mm Bottle Clamp is good for AEA 30,357 terminator,22SS,25SS,30SS, Customized 25,22 and all tube 52mm Bottle Clamp is good for Bintac S45,AEA Semiauto SS 22,25,30 Plus,30Cal Terminator,30,357,45,50HP MAX and all 350CC and 500CC 52mm Tanks 61mm Bottle Clamp is good for AEA Semiauto Carbine 22,25,30. Backpacker 22,25,30.Varmint 22,25 and all 500CC 61mmTank This listing complies with air gun guidelines found here and I will only sell and ship air guns to buyers in jurisdictions where permitted by applicable laws