Fantastic optic - Primary Arms SLx 3x MicroPrism Red Dot Sight

Honestly a great optic.

Eye relief is fine. Shot some 2 gun courses with this mounted on an AK. The eye relief is perfectly functional if you mount the sight well. The magnification is high enough to help at range and low enough to be comfortable up close.

Illumination is incredibly bright. The brightest reticle illumination I have ever seen. Everyone i show this thing to is blown away by how bright the reticle illumination is. Like I cannot emphasize how bright this thing is on the max setting. On a clear summer day at noon in direct sun on a flat range this thing still stands out clear and red when illuminated. I am also red/green colorblind so I have trouble seeing red sometimes. This thing STILL stands out.

Light weight

Small profile.

Multiple mount options included in packaging.

Very clear glass. Little to no noticeable distortion

If you want a small, light, quick fixed power scope with good illumination, this will do the job. I cannot see any downsides at this price point. This little scope is great.