I bought this for a gun build that was never completed, but I have this on two other handguns and love it. The Holosun HS507COMP Dot Sight is an incredible piece of technology for shooting enthusiasts. With a wide range of features, including a competition reticle system, parallax-free and unlimited eye relief, and up to 50,000 hours of battery life, this dot sight is perfect for all shooting sports.The reticle type includes a 2 MOA dot and an 8/20/32 MOA circle, providing precision and versatility to the user. This unit is made of high-quality aluminum and has a multicoated lens for clear and bright imagery. It has a convenient tray battery compartment and is compatible with CR1632 batteries. It can be mounted easily on a rail or rear sight and has a W&E travel range of ±30 MOA. This dot sight is an excellent addition to any shooter's arsenal.