CZ Custom CZ 75 B FP Retaining Pin Kit 0.123 0.125 0.127. 123 1 ID marks 0.125 No ID marks and 0.127 2 ID marks. Specifications for CZ Custom CZ 75 B FP Retaining Pin Kit: Manufacturer: CZ Custom Gun Model: CZ 75 B Gun Make: CZ Gun Type: Pistol Package Contents: CZ Custom CZ 75 B FP Retaining Pin Kit What firearm models does the manufacturer say CZ Custom CZ 75 B FP Retaining Pin Kit is compatible with? The manufacturer suggests that CZ Custom CZ 75 B FP Retaining Pin Kit is compatible with CZ 75 BCZ Custom 10616: CZ 75 B FP Retaining Pin Kit 0.123 0.125 0.127