Description
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 high spring pressure than OEM springs for use in 16†or shorter rifles and performs well if the rifle 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.FeaturesPack of 35 coil designOptimal for 16†or shorter riflesFor AR-15 BCGMade from Chrome Silicon wire stockHeat treated, stress relieved, and cryogenically processedEasy to installIncludes Mil-Spec extractor insert and Viton O-Rings
