2 G17s here....the 17 is my hands-down pick if (heaven forbid) I was limited to one handgun.
The 17/19 series is the original, flagship Glock, and one of the only firearms I have never heard ANYthing malfunction-related about. The .40s have the Kb and some extractor problems, as well as exhibiting accelerated wear when compared to the 17, 19, 20, and 21.
Call me old-fashioned, but the further a gun gets a way from its designer's original specs, the further the door for problems is opened. However, due to the Glock's basic construction throughout the series, a Glock with "accelerated wear" or any sort of minor problem still outperforms other handguns in their "prime".
Bravo Gaston!
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Condition Yellow: for a longer, happier life.