When you will first see the CAA MCK, also known as “Micro Conversion Kit,” you will initially adore with it right away. The initial impression was that its adapter would transform GLOCK into a carbine capable of firing pistol-caliber rounds, but it will actually exceed your expectations in terms of providing with the low-cost, sturdy pistol for personal defense. To begin, the MCK is not a firearm in the traditional sense. The device (which you may refer to as an accessory if you choose) works as a chassis for mounting your weapon on a wall. It is not essential to use any tools.