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Old 12-14-2010, 16:00   #8
SARDG
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Join Date: Nov 2006
Location: Florida's Left Coast
Posts: 7,662
I believe there are 2-pin (trigger pin and trigger housing pin) and 3-pin (trigger pin, locking block pin, and trigger housing pin) guns. I think the third and smaller locking block pin was added above the trigger pin somewhere along the time the .40 was introduced - but don't quote me on that.

My G19, ADTXXX is a Gen 2 - 2-pin (as above; no locking block pin).
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