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H&K doesn't make cheap accessories, and this 10-round magazine for the SP5K is no exception. Manufactured in Germany alongside the firearms themselves, this is the real deal factory mag, not a third-party copy trying to pass for one. The body is constructed from blued steel with a corrosion-resistant finish, paired with a stainless steel follower and a heat-treated chrome silicon wire spring. That combination is what keeps feeding smooth and reliable, round after round.
The 10-round capacity fits the compact nature of the SP5K platform well. It's a natural fit for range sessions where you want to be deliberate about your shooting, and it gives the pistol a cleaner, lower-profile look without the additional length of a larger mag. Compatibility runs wide too. Beyond the SP5K, this magazine feeds correctly in the HK MP5, SP5, SP5L, HK94, and SP89, so if you're running more than one platform in the MP5 family, this one covers a lot of ground.
For SP5K owners who rely on their gun to run, going with the OEM magazine removes any question about fitment or reliability. Aftermarket mags have their place, but when it comes to the gun you trust most, there's real value in knowing the magazine was made to the exact same tolerances as the firearm itself. Pick up a couple and keep them loaded and ready.
Many in-spec MP5-pattern clones will accept genuine H&K magazines, including platforms like the Century AP5, PTR 9CT, Zenith, MKE, and POF variants. That said, fit can vary depending on how closely a given clone adheres to MP5 specifications. If you're running a tighter or less-common clone, it's worth testing fitment before committing to a stack of these.
This is a genuine, factory-made Heckler & Koch magazine produced in Germany. It is not a licensed copy or aftermarket reproduction. It carries the H&K part number 239257S and is manufactured to the same specs and tolerances as the magazines that ship with the firearms.
The 10-round version keeps the SP5K compact and is a natural fit for deliberate range practice where you're focused on marksmanship rather than volume. It also sits flush with the magwell and gives the pistol a cleaner profile. For SP5K owners who want a reliable, low-bulk spare or training mag, this is a practical option.
The blued steel construction and stainless steel follower on the factory H&K mag put it in a different category from most aftermarket alternatives. The steel body handles abuse well and the heat-treated spring is built to maintain tension over thousands of load cycles. Among MP5-pattern magazines, factory German H&K mags are widely considered the benchmark for build quality.
Standard MP5-pattern magazines use side-clip retention on the base plate, which requires some care to release during disassembly. No specialized tools are required, but taking your time during the first few disassemblies will help you get familiar with the process. Routine cleaning is straightforward once you're comfortable with the takedown.
No. Like all roller-delayed H&K platforms in this family, the SP5K does not lock open on an empty magazine. When the magazine runs dry, you'll need to manually cycle the charging handle after inserting a fresh mag. This is a platform characteristic, not anything specific to this magazine.
| UPC | 642230255210 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 239257S |
| Brand Fit | H&K |
| Caliber/Gauge | 9mm |
| Capacity | 10 |
| Length | 5 |
| Model | |
| Model Fit | SP5K |
| Package Height | 8.25 |
| Package Width | 1.0 |
| Product Type | Detachable |
| Shipping Weight | 0.234 |
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