Trinity Red Dot Laser Sight Aluminum Black Compatible With Glock Model 17 Home Defense Accessory.For faster target acquisition mount the red laser attachment and acquire targets both day (indoor) and night with ease. Designed to mount onto pistols with Picatinny Rail already installed (Most newer models from all manufacturers), the laser is built to match your weapon, with hard anodized aluminum construction. Improve your shot and be a sure life saver for home defense. All Aluminum Alloy body for pistols of all calibers. Durable aluminum red