CAA MCK Gen 2 Micro Conversion Kit for Glock 17, 19, 19X, 22, 23, 31, 32 & 45

The CAA MCK Gen 2 conversion kit for the Glock 17, 19, 19X, 22, 23, 31, 32 and 45 covers eight Glock models on the full-size and compact frames. That list spans three calibers: 9mm, .40 S&W and .357 SIG. You never take the pistol apart. Set it in the chassis, lock the rear door and head to the range.

Gen 2 is where CAA refined the original MCK. The rear door swings back an extra 15 degrees, so the gun goes in and comes out with less fuss. A new charging handle presses against more of the slide's rear surface. CAA chose aluminum for the top Picatinny rail, citing stability and durability. Suppressor-height sights fit, and so do suppressors as wide as 1.38 inches.

Side rails hold thumb rests and other add-ons. The front spare magazine holder now locks in with a mag catch and lets go with a release button. CAA also sells a brass catcher built for this generation and Advanced Upgrade Kit pieces like a sling, a flashlight and flip-up sights, each sold separately.

Finish options are Tungsten Grey, Black, FDE Tan and OD Green. CAA designs the MCK and makes it in America, backing it with a 1-year warranty once you register it with CAA within 30 days of purchase. Some states restrict conversion kits, so confirm your local rules before ordering.