PART, MPX, EXTRACTOR SPRING HEAVY

The SIG MPX Heavy Extractor Spring is a premium replacement designed to provide stronger tension for the extractor within the MPX bolt assembly. Crafted from high-quality, hardened steel, this spring ensures dependable extraction and smooth ejection even under extended use or adverse conditions. Ideal for upgrading worn springs or enhancing extractor performance, the heavy spring maintains precise fitment and reliable cycling across all standard MPX platforms. Easy to install and engineered to factory specifications.