Sprinco USA Upgrade Kit Xp 5 Coil Extractor Spring Inner Spring 3Pk AR 308

The Sprinco USA UPGRADE KIT-XP 5-COIL EXTRACTOR SPRING/INNER SPRING 3PK delivers a precision-engineered AR .308 dual extractor CS spring upgrade designed to enhance reliability and consistency in rugged operating environments. This 3-pack pairs five-coil extractor springs with inner springs to optimize extraction force, reduce carrier tilt, and improve bolt grip on spent casings, making it a top choice for demanding rifle builds, duty setups, or precision conversions where consistent chamber clearance and dependable cycling matter most. Engineered for compatibility with AR-style platforms, the upgrade kit supports smoother bolt operation, minimizes stick, and promotes positive cartridge ejection across a broad range of primers and magazine feeds. Sprinco USA's engineering focus ensures mateability with existing bolt and carrier assemblies while preserving proper headspace and timing during rapid-fire sequences. Whether you're tuning a competition rifle, a high-mileage patrol rifle, or a sport-to-field build, this kit helps maintain reliable bolt return and extractor control under rigorous field conditions. In practice, installing the 5-coil extractor springs and inner springs can translate to repeatable chambering, reduced maintenance intervals, and a steadier shooting experience without altering external form or fit of the firearm.