The SIG Sauer MPX-K Platform Selector Plate is a critical internal component designed for seamless compatibility with King Arms’ MPX-K platform systems. Whether you’re running a tactical build or upgrading an existing setup, this selector plate delivers the precision fit and durability expected from genuine SIG Sauer-licensed parts.
Key Features
- Genuine SIG Sauer platform design – ensures reliable selector positioning and operation
- King Arms manufacturing – trusted quality and tight tolerances for airsoft platforms
- Drop-in compatibility – straightforward installation on MPX-K systems
- Durable construction – built to withstand repeated selector actuation during skirmishes
- Affordable maintenance part – cost-effective solution for platform repairs or upgrades
Real-World Use Cases
This selector plate is ideal for players who need to replace a worn or damaged fire selector component, those upgrading to a full SIG Sauer MPX-K platform, or anyone building a milsim-accurate loadout. It’s particularly useful for long-term platform owners performing routine maintenance to keep their rifle in top condition.
UK Legal & Site Notes
As an internal airsoft part, this component is unrestricted and legal to own in the UK. Ensure your final build complies with your local airsoft site’s chronograph requirements and rules before your next game day.
Stock this essential replacement part now and keep your MPX-K platform running smoothly.


