The Z9 magazine is a 9 round magazine for the Glock 43. The Z9 is a steel magazine and is the same length as the OEM Glock magazine with pinky extension but holds an additional 3 rounds. - Increased Capacity Same Reliability Glock pistols and magazines are known for reliability the Z9 maintains that same Glock reliability while giving you a 50% increase in magazine capacity in the same overall footprint. Specifications - 9 round capacity - Same length as an OEM Glock 43 magazine with pinky extension - Easy to remove impact resistant base pad - Powercron finish - Made in the USA