Description
The SP5K magazine gives owners of Heckler & Koch’s civilian SP5 and SP5K pistols a factory-correct spare that fits and functions exactly as the platform was designed to accept. When you are running a pistol built to MP5 geometry, an OEM magazine matters: the feed lips, follower geometry, and body dimensions are engineered to the same tolerances as the host firearm rather than being adapted from a different form factor.
At ten rounds, this magazine is sized for shooters in jurisdictions that cap capacity, or for anyone who wants a compact, low-profile option for range work or storage. The magazine is finished in black and constructed to H&K’s standard for the SP5 line, which means the same steel-body durability found in the original equipment that ships with the pistol. A detachable design means swaps are straightforward, and the magazine drops free cleanly under the platform’s standard controls.
Part number 239257S is the correct OEM reference for this variant — worth confirming before purchase if you are cross-shopping, since H&K produces multiple capacity options for the SP5 family and feed titles do not always distinguish between them clearly. If your SP5 or SP5K shipped with a magazine of a different capacity, this is the factory replacement and spare that brings you back to the original specification.




