Design based upon the M16 extractor. Provides improved purchase on case rim for a more positive extraction when cases are sticky (hot loads or tight chambers etc.) We provide the part and mill your bolt to accept the extractor. We suggest sending your full rifle (and test cartridges if your caliber is unusual) so that we can test the feeding and make any slight modifications necessary. Service for Remington 700 actions only--Lapua Magnum, Belted Magnum (Remington and Winchester magnum) and standard (.308 Winchester) cartridges. Badger Ordnance p/n: 306-90, 91, 92