CZ Custom CZ 75 B Solid Firing Retaining Pin 0.125. Rounded on one end for easier insertion. Dimpled on the other so the roll pin punch doe not slip. Precision machined. The Dimpled side of this pin is a LARGER DIMENSION so the pin need to be installed round end first. To remove it need to drifted out the reverse of the way it went in. The Pin may be tight in the hole and a punch will be needed to install the pin. This tight fit is what keeps the pin in place FP retaining pin. Specifications for CZ Custom CZ 75 B Solid Firing Retaining Pin: Manufacturer: CZ Custom Gun Model: CZ 75 B Gun Make: CZ Gun Type: Pistol Package Contents: CZ Custom CZ 75 B Solid Firing Retaining Pin What firearm models does the manufacturer say CZ Custom CZ 75 B Solid Firing Retaining Pin is compatible with? The manufacturer says that CZ Custom CZ 75 B Solid Firing Retaining Pin is compatible with CZ 75 BCZ Custom 10245: CZ 75 B Solid Firing Retaining Pin 0.125