Factory HK 12-round CC9 magazine fitted with HK Parts' +5 extension.

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HK Parts builds this 17-round CC9 magazine from a factory German 12-round magazine and its own +5 extension. It is a complete, assembled magazine rather than a base-pad kit, so the buyer does not have to transfer a spring, locking plate, or floorplate from an existing magazine.
The extended body gives the CC9 five more rounds than its factory 12-round magazine, but it also changes the grip length and concealment profile. It is best treated as a range magazine or spare reload unless the buyer has already confirmed the longer magazine conceals under the intended cover garment.
Add the HK Parts CC9 9mm 17rd Magazine to your build and see how it enhances your platform.