Sightmark LoPro Mini Green Laser Sight

Mine is mounted on an AR15 pistol chambered in 6.5 Grendel. Installs easy. I recommend Locktite thread locker on any accessories. Very compact for a rifle laser but heavy enough to feel well built. Holds zero with no issues (so far). Green laser is visible at 25 yards in sunlight, maybe farther on a different surface or for someone with better eyesight than me. At night it’s visible at several hundred yards. I chose not to use the cord switch. Just not a big fan of those. There’s an activation button on both sides so it’s easy to position at an ergonomic spot on the rail. I also have the older model Sightmark laser/light combo model on another AR15 pistol that still functions as it should after close to a thousand rounds. I chose to go with the laser only on this gun because I wanted a more powerful light than the combo model has, though the combo model is very good for home defense purposes. Adjustment is easy. I just visually lined it up at 100 yards with my optic and it’s dead-on. That’s also an easy check to see if it’s still zeroed without having to go to the range. Use Locktite and don’t over torque it and it’ll be fine. Overall I’m very happy with it. There are more expensive choices out there and many cheaper ones that I would avoid. But Sightmark has worked well for me so far. It comes with a battery but switch to Duracell when it needs replacing. They last much longer. I hope this helps.