Use a standard 9mm cleaning kit. Pay attention to the steel guide rod and the slide serrations.
Guides for models that are optics-ready. Quick Maintenance Steps str9.rar
The Stoeger STR-9 is a budget-friendly, striker-fired, polymer-frame 9mm handgun. It is often compared to the Glock 19 due to its similar internal design and size, though it typically retails at a significantly lower price point. Use a standard 9mm cleaning kit
Often features optic-ready slides and threaded barrels. str9.rar