The CM16 MOD0 is a great addition to the Combat Machine line of AEGs from G&G Armament. The MOD0 has the same reliable internals that other Combat Machines are known for, but also sports some internal and external improvements. Internally the gun has a full metal gearbox with metal gears and a high power spring, allowing the gun to shoot at 400 FPS with 0.20g BBs. Externally this AEG is based on the G&G G26 but it has been altered for a more streamlined look and feel. The GOS-V2 stock has th same features as the GOS-V1, but the top has been toned down for a smooth, straight cheek rest. The handguard is also based on the G26 handguard, but it has been elongated for more battery space. Modular rail pieces are also included making it easy to add accessories such as lasers, foregrips, and flashlights. A full length top rail makes it easy to add optics as well. Another great feature is the flip-up rear sight and the new gas block design with a removeable front sight, a big improvement over the standard fixed front sight on the older CM16 models. Included with the gun is a 450 round high capacity magazine.