RMR Red Dot Sight, Tactical 20mm... vs Holosun HS510C 2 MOA Open Reflex...

It's worthless if there is no way to adjust and dial in the point of impact. That is a huge let down.

The holosun takes the heat and recoil no issue. The quick detach lever is sometimes a little difficult to open when removing from the rifle. Mounted on my 1976 ruger 10/22.

With the magnifier engaged it's crystal clear and crisp even without my rx glasses on. The glass is clear, the dot and moa circle are crisp. It's very easy to shoot with both eyes open with this reticle.

Like the romeo, the holosun sleeps after you stop moving it but awakes instantly when you pick it up. The solar feature is awesome for saving battery life when shooting in daylight, and it regulates brightness to match conditions. The shake awake feat...  Read More

Holosun he510c is leaps and bounds above my mro. Awesome optic for the money. The closet eotech is the 512 for $450 or so.

Holosun is the real deal. They are reputable and trustworthy to deliver what they. High quality, great price. It's definitely not a dealbreaker or an issue.

The brightness is not that good. Increasing the brightness does nothing. It takes more than 5 minutes just to swap the battery. This is battery powered and solar powered and doesn't work at all.

How that got past quality control is mind boggling. Obviously assembled by someone with minimal skills and never tested. Brings me to my other complaint - the screws on this thing are like butter, the strip with the slightest torque.

Both units have residual glue around the perimeter of the lens. Glue outline being illuminated on square outline. Not focusing & brightness button not working brightness turns bright and dim on its own.

Buy vortex or eotech instead. I'm out 270 bucks, and they only had to give me a * one.