Designed after the extractor found in the M16 military rifle, this is a full sized version that fits the Remington 700 bolt action. Originally intended for full automatic fire, this upgrade assures positive extraction from your hunting or tactical rifle. The extractor itself is fully CNC machined from steel billet.The kit comes complete with the billet extractor, the extractor spring, and the retaining pin.This kit fits Remington 700 rifles with a Magnum (300 Winchester Magnum, 7mm Remington Magnum) bolt face.This is not a drop-in part. Installation requires machining of the bolt and should be performed by a qualified gunsmith.