CAA MCKGEN3 Micro Gen 3 Fits Most Glock Gen3-5 Black Synthetic Stock

Compatible with the Glock 17/19/19x/20/21/22/23/25/31/32/45. Not compatible with Gen 1 or 2 Glock models due to lack of forward Glock universal accessory rail. Can be used with a huge array of slide mounted optics. No longer is the MCK slide and serration dependent! Utilizing the GEN 3 Charging Handle you can use any aftermarket slides sights or optics inside the MCK.