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  1. Holosun 507c Red Dot Sight on Q5

    PPQ
    I am a new(ish) pistol shooter and wanted to share my experience with the addition of a Holosun HS507c reflex sight. I have put about 400 rounds through my PPQ Q5 at my range using the stock iron sights without really understanding why some of my groupings were messy. Adding the red dot sight...
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