Compatible with the Glock 20/21. 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 NEW GEN 3 Charging Handle you can use any aftermarket slides sights or optics inside the MCK.
-32%
Command Arms MCK 3.0 Handgun Conversion Kit for Glock 20/21 Black
$188.59 Save:$88.00(32%)
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