Morning all!
A pre-B CZ 75 is typically one that does not have the firing pin block. You can break the common CZ 75 family into three blocks. There are early 75s, transitional 75s and then the 75Bs. The early pistols had the rounded trigger guard, pinned front sight, a different rear sight and no firing pin block. The transitionals started to incorporate features of the later pistols one feature at a time until the FPB was introduced and the name 75B began. First, the rear sight was modified to today's stock sight dovetail. Then the trigger guard got an edge on the front corner. Next was the introduction of the current front sight style. The pistols with the rounded trigger guards are often called A models to differentiate them from the other non-FBP pistols.
This is an early '88 pre-B, sometimes called an A:
This is a transitional that has all of the later features of the B, yet does not have the FPB:
This is a 75B as evidenced by both the roll marks and the roll pin in the slide that retains the firing pin now:
A pre-B CZ 75 is typically one that does not have the firing pin block. You can break the common CZ 75 family into three blocks. There are early 75s, transitional 75s and then the 75Bs. The early pistols had the rounded trigger guard, pinned front sight, a different rear sight and no firing pin block. The transitionals started to incorporate features of the later pistols one feature at a time until the FPB was introduced and the name 75B began. First, the rear sight was modified to today's stock sight dovetail. Then the trigger guard got an edge on the front corner. Next was the introduction of the current front sight style. The pistols with the rounded trigger guards are often called A models to differentiate them from the other non-FBP pistols.
This is an early '88 pre-B, sometimes called an A:
This is a transitional that has all of the later features of the B, yet does not have the FPB:
This is a 75B as evidenced by both the roll marks and the roll pin in the slide that retains the firing pin now: