WolfBodyArmor shows the second version of the K-SMG-1 Airsoft GPCQB, the "Ferret" MK2... "This is the Mk2 version of the Ferret smg, with many improvements over the original. Still using kwa mac11 magazines, but now with a lower firing rate of 800 rounds per minute, and an under mount shotgun which takes APS cam870 shells. The shotgun is fired using a forward mounted button.