Airsoft Craving reviews an already familiar kit amongst airsoft players, the CAA RONI M9 Airsoft Pistol Carbine Kit... "The RONI B M9 Pistol-Carbine Conversion Kit features an ergonomic design and ambidextrous front and rear sling mounts, as well as a large charging handle. Charging the weapon is straightforward, and the system is user-friendly for both left- and right-handed operators."