Since I decided to carry my Glock 23 in .357 SIG conversion mode, I thought it prudent to replace the fixed rear sight with the same kind of adjustable sight that is on my competition/tactical Glock 35 pistol. Reason being that the original Glock 23 fixed sights are set to accomodate heavier and slower .40 S&W ammo. Lighter, and faster .357 SIG ammo tends to have a lower POI at normal combat pistol ranges. The fully adjustable sights will correct this problem.
The magazines depicted in the photo (from left to right) are 13 round, 15 round, and 22 round.
The ammo I choose to use for PD is Remington 125 grain bonded GSHP.
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