I put a Vortex Venom 3 MOA on my Gen 5 MOS Glock 34. Went to range and set a big target up at 15' and fired five shot groups. I can not get the Red Dot elevation to zero and after running out of elevation adjustment I am still hitting a foot high.

This is my first Red Dot on a pistol and I had no issues when I put a Trijicon MRO on my Banshee pistol carbine and have mounted and zeroed all of my optics for over 40 years. Anyway, I am open to suggestions and will be calling Vortex on Monday.

I will even read the directions again, but how hard can it be?