Tactical Springs LLC Extractor Upgrade Triple Kit

Built for shooters who demand the best, Sprinco's extractor springs go through intense heat treatment and cryo-processing, then get a slick moly-disulfide finish for unmatched reliability and wear resistance in your bolt carrier group.The XP 5-coil spring provides a greater load capacity compared to standard OEM springs, thereby eliminating the need for additional D-Fender rings or CRANE viton O-ringsSprinco's Extractor Springs undergo heat treatment and cryogenic processing to enhance durabilityThey are capable of withstanding temperatures up to 750 deg F without any degradation in performanceThe 5-coil spring is compatible with all 5.56x45mm barrel lengthsHowever, it may exert excessive force on rifles with barrels longer than 18 inches or on bolts with tight tolerances, which could potentially damage case rims