Hawaii: It can be dropped by Coastguard zombies in the Alika Base.
The Cobra is a unique weapon in the sense that it's a machine pistol, and can switch to automatic. Due to its fast fire rate, this gun can deal a lot of damage at close range. Because it has a slightly low amount of rounds for an automatic weapon, and it has high recoil, it is wise to shoot in small bursts.
The Cobra is small, taking up 4 slots in the inventory.
Very fast fire rate, being the only pistol to fire fully automatically.
Oddly enough, the Cobra was described as an "Australian" weapon but was later changed to describe the Cobra to be "Austrian" in 126.96.36.199.
Its olive color makes the gun useful for night time operations.
The name Cobra might be based on the EKO Cobra counter-terrorism group. It is an Austrian spec-ops unit that uses the Glock 17/18/19 as their most common sidearm.
This may also be related to the weapon's naming in Unturned as EKO Cobra was also the ones to prompt Gaston Glock, designer of the Glock pistol, to design a fully-automatic variant for special forces use.
Strangely, if a weapon skin is applied to this weapon, the grip will change from olive to black.
The Cobra looks very similar to the G18 from deadzone, which is what it is based on.