Wilson Combat Bullet Proof Extractors are machined from solid bar stock alloy steel and then specially heat treated to optimum hardness and cryogenically treated for long lasting tension and toughness to resist chipping or breakage. It requires minimal fitting for proper function and often will drop in some guns with only final tensioning required. This Series 80 extractor has an optimized hook design with location tolerances held to +/- .001" for maximum strength and case rim contact. Radiused corners offer extended life and smooth feeding while the enhanced design holds tension longer than over factory parts. Series 80 extractors have a plunger retainer stud machined into it to hold the firing pin safety plunger visible next to the disconnector rail in place on Colt-style Series 80 slides. All extractors which are designed to work in a Series 80 1911 will also work in all Series 70 guns. This Bullet Proof 1911 Extractor for 80 Series 45 ACP is fully machined from S7 tool steel (a Wilson exclusive) which is shock resistant with excellent toughness and high strength (tensile strength of 275,000 PSI), along with good wear resistance. It has a blued steel finish.