NEXTORCH 650 Lumen Tactical Flashlight with Red Laser - Compact Rail Mount Handgun Light, USB Rechargeable Weapon Light for Pistols - Perfect for Home Defense, Hunting & Law Enforcement Use

I couldn't be more pleased with this rail mounted accessory. I installed this on my G21r4, and it fit perfectly.Its easy to use my index finger to toggle the flipper to make the flashlight be "always on" or "quick flash". A slight stretch of the same index finger and I can actuate a button that turns on the laser red dot.Even nicer: the design is such that it can be used by lefties and right handed people easily well. My son is left handed, and I am right handed. He's able to use the accessory without any changes in mounting: it just works.Included is a rechargeable battery, and the battery has the added feature that the charge is built in: you plug the USB cable right into the battery.Also included is a small hex wrench for adjusting the red dot to match the sight targeting, and, 2 additional O rings.The quality of build, the materials used, the design... these are all top notch and I would 100% recommend this accessory to anyone.This sturdy, easy to use flashlight mounts easily on pistols and rifles, features a bright flashlight with easy on/off toggle, and Red laser for more accurate target acquisition. The overall fit and finish is excellent, putting this in the premium category imo. A capable alternative to olight products. A bit pricey.This is excellent. It is tough and durable, and works great right out of the box. No problems attaching it or setting it up. Bright, easy to engage and disengage. Fun to use. It does just what it's designed to do. Great upgrade! Highly recommend.