SPRINCO AR-15 M4/M16 Extra Power 5-Coil Extractor Spring

This 5 coil extractor spring is designed for AR-15/M16 bolt carrier groups and provides a higher spring load than OEM springs for more reliable extraction in adverse conditions. Whether you are replacing worn springs or setting some aside for future use, Sprinco springs are the only ones you will ever need. ADVANTAGES: XP 5-Coil spring has a heavier spring load than OEM springs, thus negating the need for a D-Fender™ ring or adding CRANE Viton O-Rings You can use 5-Coil spring with either black extractor spring insert OR CRANE Viton O-Rings, but not both! FEATURES / INFORMATION: 5-Coil Design Unaffected by heat up to 750°F Compatible to AR-15/M16 BCG in all AR-15 calibers NOTE: D-Fender™ rings are NOT recommended for use with our 5-Coil extractor springs. Extreme duty cycles provided while maintaining performance specifications Heat Treated, Stress Relieved, and Cryogenic Processed Post Winding Impregnation / Plating with Re-Micronized Molybdenum Disulfide Formulation Made from Chrome Silicon wire stock Plug & play - May easily be the only extractor springs needed for the life of your bolt!! Compatible accessories see under this article, accessories. _____________________________________________________________________________________________________________________________________________________________________________________________ General Informations 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. Standard for US military, recommended by professional gunsmiths.MADE IN THE USA