Great optic for shooting steel - Holosun ARO MRS Advanced Rifle Optic 1x22mm Reflex Red Dot Sight

This is an excellent optic for the price point. I like the circle-dot for shooting ringing steel targets at our gun range. Attaching the optic to my M&P15-22 took less than a minute. Sighting in only took a few shots to dial in and the dot is very bright in any lighting environment. Also, I do like the feature that if you leave the optic turned on and set the rifle down, it will auto-shutdown after a few minutes to save the battery. The minute you pick up or move the rifle the optic turns back on immediately.