The Z8 magazine is a steel, 8 round, flush fit magazine for the Glock 43 that holds an additional 2 rounds compared to factory magazines. Glock pistols and magazines are known for reliability - the Z8 maintains that same Glock reliability, while giving you a 33% increase in magazine capacity in the same overall footprint. Shield Arms recommends swapping out your plastic OEM mag catch with either their standard steel mag catch or their premium steel mag catch. If you don't swap your mag catch or use another manufacturer's mag catch, you may have reliability issues. Specifications: 8 round capacity Same length as an OEM Glock 43 magazine Flush fit when installed in your Glock 43 Easy to remove, impact resistant base pad Nitrocarb finish Made in the USA