I experienced the same thing. Sent mine back to Amazon. Totally turned off of red dot sights on handguns after my experiences shooting with red dots/green dots and comparing my speed and accuracy with iron night sights. I never intended to carry a pistol with a dot, but looked into one for my nightstand gun (Glock 34) because of my slightly fuzzy vision at night without my contact lenses in. I think I'll be much better served with a TLR2 light/green laser combo and Trijicon HD night sights which, while fuzzy, still allow me to index my pistol sufficiently to hit at home defense distances even without the laser.If grip and extension is even slightly off, no dot and no simple fix.