Jp red dot - JP Enterprises Red Dot Sights - JPoint 4 MOA Dot Sight

Holds zero nicely on my 40 cal Springfield ...used their rear mount in place of rear sight,fits tight in dovetail.But won't work with front sight...would need two higher iron sights.Nice clear red diot...out to 75 feet..a Competes with the much higher higher priced red dots.Small,lightweight,good for pistols ,not sure about rifles and longer distances ?