"First of all, the unit is of solid construction, and it's QD latch is solid, however slightly mis-sized (on the small size) so once you attach the unit, there's no quick way of getting it off. This is ok, if you want to attach it and leave it on.
The downside to the construction is that there is no disassembling the unit to fix any potential issues. The first of these units I purchased did fail after about 3 years. I had to drill through a polymer screw coating to access the screws for repair, and then order new screws to reassemble the unit. This is much more of a headache than it's worth, if it fails and you liked it, order a replacement, don't try to fix it.
The pressure switch is a clicky type, and is either on or off, there is no momentary.
This is a 3.5mm stereo type input. It holds in place fairly solidly.
The Visible laser is red, and bright on both high power and low power settings.
The IR Illuminator is good, but a bit too narrow of a beam. It's beam/cone is not adjustable in size, only adjustable in center of aim.
The IR laser is bright and is visible using both inexpensive night vision (Gen 1) and more expensive night vision (Gen 3). I use an ITT PVS-14 Gen 3, and on high power the beam is clothesline visible from the unit to the target. While high power gives more of a clothesline effect, low power for IR (pointer and illuminator) is plenty bright when viewed through night vision. In my opinion, there isn't a real need to use high power, so conserve your battery and keep it on low.
There is a problem with the lasers. First, they are independent in their point of aim, yet only have one set of adjustment screws, so any adjustment moves both lasers at the same time. Meaning if one of the lasers is sighted in, the other will be off. Mine have around a 18 inch point of aim difference at only 50 feet. - Even with taking a unit completely apart, there are no adjustment screws to fix this, so don't try. Just accept that only one or the other can be sighted in on target.
The unit holds zero fairly well, however it is not intended for actual firearms, as even drops of a gun with the unit attached can adversely impact the zero point of the unit. Inside the unit the lasers are held in place on the two axis points by a spring, and on the other two by screw contacts. - Adjustments are simple, however not designed for real precise adjustments over distance. At about 25 yards each "click" on the adjustment knob moves the beam around 2-inches, so it will get you close, but remember this is a toy, not a precision piece of military hardware.
As for battery life (CR123A), these do fairly well (noticeably longer life on low power). When the visible laser is on, it's immediately apparent that the unit is on. When the IR is on, there is a faint green LED illuminated on the back of the unit which tells you the unit is on. This can be distracting when using NVG's. I'm pretty good about turning things off, so I have a piece of electrical tape covering the LED indicator. So, while the unit itself does well with battery life while it's on, the unit does have a slow draw even while it's in the off position, so I would recommend removing the battery completely during storage.
Ok, so why did I take one apart? After about 3 years my IR laser went from pin point to the size of a bus at 50 yards. The frontal adjustment piece did not fix this, and I could hear something rattling inside the unit. I decided to try to fix this. It was a major PITA. Don't do what I did. While I did fix it (a lens came detached from the laser face), in my opinion it would have been much better to simply replace the unit, which I later ended up doing.
I hope this review was helpful.
"This is a good IR/Laser unit for the price.
The Laser is bright as day and clear in the night. You can easily see the laser on a surface from 200+ feet away. Same with the IR Illuminator, with a good set of NV devices, the IR is easily seen through the device.
Multiple settings for constant on/momentary on and high or low brightness
Heavy, because it's metal, it's significantly heavier than a normal PEQ-15.
Wobbly(maybe just for me). The mount isn't the most perfect fit on my rail system. (Daniel Defense OMEGA rails). It wobbles a bit, but it won't fall off as long as you lock the handle.
Overall, this is a steal for its price as a Laser AND IR illuminator.
"This item is awesome!!! The visible laser is very bright and visible for a good distance.
The IR laser is awesome, the fact that this item features a working IR laser and Illuminator for this price is amazing.
This is a definite buy if your looking for a working PEQ with IR features.
**BTW you need night vision to see the IR laser and illuminator**