Combo includes (2) Z9 magazines and (2) black nitride steel mag catch / release. Features a Powercron cationic epoxy coating that offers excellent corrosion resistance and low VOC in a lead-free film electrocoat surface finish. GlockA(R) pistols and magazines are known for reliability - the Z9 maintains that same GlockA(R) reliability while giving you a 50% increase in magazine capacity in the same overall footprint.Accomplished this increased capacity with their patent-pending magazine geometry allowing the rounds to stagger thereby fitting more in the same amount of space.Proudly made in the USA