This Enhanced 308 Extractor provides a great upgrade over existing over factory 308 AR extractors. JP completely redesigned the extractor, using improved materials and heat treatment processes. This extractor will hold up for thousands of rounds, instead of encoutering extraction issues after a few hundred. Fits DPMS pattern 308 bolts. Includes extractor and spring. Mfg: J P Enterprises SPECS: Fits - DPMS LR-308 or compatible rifles.