I was very happy with Shield 9. I had absolutely on issues with it mechanically or with it's reliability. The only reason I sold it was because I got the Shield 45 and someone offered me a good price for it. The Shield 45 is about the same size as the Shield 9, holds the same capacity, but packs a bigger pop. I kept the Walther PPS M2 as my single stack 9 for other reasons.

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Shield 45