It also shows that the P345's rear sight is considerably longer than that of the P89. While it looks odd, it does perform a function; it's helping to hold the gun together. Several of the parts inside the slide are installed from the top; thus the larger sight.
Notice the extra width built onto the safety/decocker on the P89 vs. the P345. Both the mag release and the right end of its pin hang out farther on the P89 than on the P345.
While the overall length of the P89 is about 0.16" longer than the P345, the P345 provides a slightly longer sight radius (about 0.20"). The P89's barrel measures 4.35", while my P345's measures 4.05".
Slide width is 1.02" (P345) vs. 1.07" (P89), but the difference in overall width is much greater. The P89's frame measures 1.30" at the widest point, while the P345's frame is about 1.12" at the top rear, which is the widest it gets except at the widest part of the grip, which is about 1.24". The P89 grip varies a bit, but is about that wide everywhere.
As I stated on an earlier page, the widest point of the P345 above the grip measures about 1.24", and that's taken at the extremes of the mag release & takedown pin. The same dimension on the P89 is 1.53".
The P345's safety/decocker is about 1.2" wide at its widest point; the P89's is a whopping 1.47".
