So far - so good - Vortex Defender-XL 1x25mm Reflex Red Dot Sight

I shoot Sig's and I only use Sig optics. Specifically, the Romeo 1 Pro. It is a great optic. Best glass and dot quality in the business. I bought a P226 XFive and was going to order my regular dot for it but it was out of stock everywhere.
Optics Planet had the Defender XL on sale so I decided to give it a try. Pleasantly surprised and very impressed. VERY nice optic and completely worth what I paid. I liked it so much I bought two more. One for my Limited Optics gun and the one for a spare or my next P320 because there will always be a new P320 on the horizon. LOL.