Replacement CO2 bulb seal retaining screw for the following Crosman air pistols:
– 1875 Remington
– Cowboy
– C11
– Iceman
– Sheridan Cowboy
– 1911BB
– SBR DPMS
– Tac R1
– SR & SNR 357
– Pro77
– C*TT
– C41
Will fit any other versions that have the green main CO2 seal