Cleaning My HK SP5 — What I Found Was Surprising

Published on September 16, 2025
Duration: 14:48

This video details the cleaning and maintenance of an HK SP5K after approximately 8,000 rounds, with 90% of them suppressed. The speaker demonstrates a surprisingly simple field strip process, highlighting the roller-lock system's efficiency in preventing excessive fouling. The guide covers removing the stock, bolt carrier group, and cleaning components, noting the minimal buildup despite high round count and suppressor use.

Quick Summary

The HK SP5K, after approximately 8,000 rounds (90% suppressed), showed minimal fouling, suggesting the roller-lock system is effective at keeping the firearm cleaner than gas-operated systems. It reliably fed a wide variety of 9mm ammunition and is surprisingly easy to field strip for cleaning.

Frequently Asked Questions

How many rounds has the HK SP5K been fired with in the video?

The HK SP5K in the video has been fired with approximately 8,000 rounds. The speaker notes that about 90% of these rounds were fired suppressed, which typically increases firearm fouling.

What was surprising about cleaning the HK SP5K after 8,000 rounds?

It was surprising how little fouling was found inside the HK SP5K after 8,000 rounds, especially considering most were fired suppressed. The speaker attributes this to the efficient roller-lock operating system.

What ammunition types did the HK SP5K reliably feed?

The HK SP5K reliably fed a wide variety of 9mm ammunition, including 90-grain FRANGE, 115-grain ball and flat point, 124-grain, 147-grain hollow points, flat points, and Gold Dot, with no reported issues.

How easy is it to field strip the HK SP5K for cleaning?

The HK SP5K is surprisingly easy to field strip. After removing a single cross pin for the stock/brace, the guide rod, spring, and bolt carrier group slide out, and the lower receiver hinges off, making it a straightforward process.

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