You cannot beat this $30 holographic site. I have spent twice as much on sites that are unusable.
I have put about 100 rounds through a 9 mm carbine and it has performed well and stayed tight.

As you can see in the video there is nominal parallax.

Pros:
- Minimal parallax (the further out you go the more shift)
- Works with low profile rifles
- Okay for broad daylight
- Lightweight
- Clear optics

Cons:
- No auto-off

Extremely satisfied with my purchase. I have bought cheap lasers and sights before with disappointment but this sight is built very well and feels expensive. I only had to adjust it once after shooting about 300 rounds in a hour, but the adjustment was so minuscule that I barely noticed it before. I used it with a .223 AR15 and it stays zeroed in and stays put. Looks great on my AR15 too.

These reflex red & green holographic sights had some of the best reviews that I read.

But, in addition to the reviews, I liked the fully shrouded assembly.

I was concerned that a good "bump" might damage some of the other reflex sights, where there was just a small blade jutting up in the front.

I feel that this is a real quality product.

I feel that the full shroud will help to protect the lense, the unit, and keep it from losing its "zero"...

The lights / dot / cross-hairs are bright and clear.

It is fast and easy to get on target.

I would recommend this particular sight, to anyone thinking about a reflex sight.

I knew before purchasing this holographic sight that the locking screw had to be loose before attempting to to zero in the wind-age & elevation. The directions that came with this sight never mentioned this. If adjustments are attempted while the locking screw is tighten down the locking screw can be damaged. The locking screw on the sight I received was stripped upon receiving it. I would recommend anyone buying this sight to make sure the locking screw works before mounting on a gun & to make sure the locking screw isn't tighten down while adjusting the wind-age & elevation. This last fact should be stated in the DIRECTIONS, which it's not!! Amazon did full reimbursement including shipping cost which I appreciated.

Update: Banyan Imports sent another one of these sights at no cost. They asked if I would try the sight & provide an update to my previous review. I received the sight & everything work on it, including the locking screw. I have taken the sight to the range twice. I zeroed in the sight which has held so far. The sight is well made and for what it cost I don't think one could find a better sight. It's not a top of line sight but it's accurate & functions very well, again for the cost you can't beat it. I would've given the sight 5 stars but didn't for two reasons. First, the directions still don't state that the locking screw must be loose before making any adjustments to the wind-age & elevation. Second, I've have limited range time with the sight so I don't truly know about it's durability & if it will continuously hold zero (which I believe it will). I would like to thank the seller Banyan Imports for full refund on the 1st sight sent & for sending the replacement sight at no cost to me. They are truly a reputable company.

I like this red/green dot. It's well made and after some adjustments, seems to be very accurate but only to around 30 or so yards before an adjustment is needed. I like the fact that you can adjust the light intensity. I prefer the lowest intensity. Any brighter and the target bulls-eye seems harder to see. The $29 price point is definitely a positive and hard to beat. Lots of other red/green dots are more expensive. For general small-caliber plinking, this red dot is hard to beat.