Airsoft YouTube Channel, Call Your Hits, got one of the ESC Works Predator Carbine Kits to for the MK23 NBB pistol for an unboxing video... "Super unboxing of ESC WORKS "Predator Carbine Kit" for all MK23 platforms! The Predator you will see is a new version in the works with an M4 style stock. In the video I will briefly explain how to install the kit on your gun, obviously leaving you some field tests."