Trinity Low Profile Red dot Sight for Smith and Wesson Sigma New SD9VE Tactical Home Defense Picatinny Weaver Mount Adapter Aluminum Black Class IIIA 635nM Less Than 5mW.

Love it. Fits my S&W sd9ve perfectly. Visible in daylight. Highly recommend!

Wrks as expected and easy to line up with adjustments.. would def buy again

Easy to mount looked good but fell apart after the second time shooting with it didn’t even get 200 rounds through it

This product installed just fine on my S&W SD9VE. You'd have to be an idiot to not be able to install this sight on your bottom rail (even comes with the Allen wrenches needed for installment and adjustments). Tested on and off several times with no issues. Very bright under normal house lighting in the evening. On and off is snug enough to not slide on/off but also had some sort of oil to allow a smooth slide on/off. Adjustment screws to zero in on a target but I have not live fired yet. Only complaint is that the on switch goes left to right to turn on. I am a right handed shooter and would prefer to activate the laser with my right pointer finger instead of my left thumb. But, for what you pay, you can't beat this item!

As in comparison to the other products yeah it’s a lot cheaper but this Is easily turned on while carrying as for the reason it comes with a spare battery

Fit my smith and Wesson sd9ve perfect looks nice and clean haven't gotten it to the rage yet with the laser

After installing the sight I found it to be amazing. It looked nice and it fit nice and snug. It wasn't till I took it to the range that the sight completely fell off. Ive tried to reinstall the sight but it just won't go back on. I thought it was too good to be true. Overall it has a lot of potential to be an amazing sight. But it just doesn't work for me this time.

Love it. I can't carry with it on because it makes it bulkier. But I like target practice.