Sprinco M4 / AR-15 Extra Power 5-Coil Extractor Spring Upgrade Kit - 3 Pack

Sprinco M4 / AR-15 Extra Power 5-Coil Extractor Spring Upgrade Kit - 3 PackJust like their buffer springs, the Sprinco AR-15 Extractor Springs are made from high-quality Chrome Silicon wire stock that has been heat-treated, stress-relieved, and cryogenically processed to produce long-lasting durability. This 5-coil extractor spring upgrade kit is designed for AR-15 bolt carrier groups and provides higher spring pressure than OEM springs for use in 16" or shorter rifles, and performs well if the rifle is dirty. This upgrade kit also includes the Mil-Spec extractor insert and Viton O-rings. Whether you are replacing worn springs or setting some aside for future use, Sprinco springs are the only ones you will ever need.Features Pack of 3 5 coil design Optimal for 16" or shorter rifles For AR-15 BCG Made from Chrome Silicon wire stock Heat-treated, stress-relieved, and cryogenically processed Easy to install Includes Mil-Spec extractor insert and Viton O-Rings