Tactical Springs LLC Dual Bolt Extractor Spring Kit

Trusted by professionals, Sprinco's extractor springs are precision-wound from chrome silicon, stress relieved, cryogenically treated and finished with a moly-disulfide plating - built to exceed mission-critical demands.The AR .308 Cal dual extractor CS spring upgrade kits from Sprinco USA incorporate springs made from heat-treated, stress relieved and cryogenically processed chrome silicon wirestockThese springs are further enhanced with a molybdenum disulfide coatingThe XP 5-coil spring provides a greater load capacity compared to OEM springs, thereby removing the necessity for D-Fender rings or CRANE viton O-ringsIt is compatible with all 5.56x45mm BBL lengthsThese springs sustain performance under extreme duty cycles and temperatures reaching up to 750 deg FThe dual spring XP .308 Cal sets are compatible for use with or without CRANE O-rings