I had a heck of a time focusing on the rear peep sight on my new Hi-Point carbine. Problem solved with the SeeAll Mk1 open sight. Now I'm in a 3 inch circle, hand held stand position at 65'. Nothing wrong with the peep sight set up on the Hi-Point, I just couldn't adjust to the sight with my glasses. Now my new 9mm carbine is a blast to shoot. Thanks SeeAll!
Mk1 - The Original Open Sight