It's been a few years since I have been to the Glock Armorer Course so someone help me out. Why is the locking block different on a Gen 3 FDE G19 as opposed to the locking block in the Gen 3 G19 with black frame? These are both 3 pin locking blocks.
I recently had to do a teardown and rebuild of a friends G19 and her locking block and trigger pin were broken. While examining it, I noticed that it is different and the one from my FDE one would not interchange.
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