Wilson Combat AR Rifle Bolt 5.56 NATO Black

Wilson Combat AR Rifle Bolt 5.56 NATO Black. 158 steel shot-peened for increased strength and a includes a tool steel extractor and ejector appropriate extractor spring and is HPT (High Pressure Tested) and MPI (Magnetic Particle Inspected).; The extractor is 4140 gun quality annealed cold drawn steel per the Mil-Spec. The bolt is the heart of any rifle and these will serve you well as a backup part or the beginning of a new build; Parkerized finish; Mil spec small parts ensure a long service life; Machined ejector and extractor per mil specs; Drop in fit for any quality 5.56 case head based AR rifle (.223/5.56 NATO .300 Blackout .204 Ruger or 7.62X40 WT); Specifications for Wilson Combat AR Rifle Bolt 5.56 NATO: Manufacturer: Wilson Combat Finish: Parkerized Fabric/Material: Steel Cartridge: 5.56x45mm NATO Package Contents: Wilson Combat AR Rifle Bolt 5.56 NATO Wilson Combat TR-BOLT556: AR Rifle Bolt 5.56 NATO Black