Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete

Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete Bolt assembly machined from Mil-Spec Carpenter 158 steel, shot peened for increased strength per Mil-Spec, includes Mil-Spec 4140 billet tool steel extractor with spring and viton O-ring, Mil-Spec ejector and spring. HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected). Comes Assembled. Specifications for Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete: - Manufacturer: Cryptic - Fabric/Material: 4140 Billet Tool Steel, Carpenter 158 Steel - Carrier Material: 8620 Steel - Bolt Material: Steel - Caliber: 7.62x51mm NATO, .308 Winchester - Gun Make: AR Platform - Gun Model: AR-10 - Hand: Ambidextrous - Weight: 2 oz - Condition: New - Included Accessories: Standard Package Contents: Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete; Bolt; Tool Steel Extractor Assembly (spring with viton insert pin extractor); Ejector Assembly (ejector spring roll pin); Gas Rings - Set of 3 Package Contents: - Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete - Bolt - Tool Steel Extractor Assembly (spring with viton insert pin extractor) - Ejector Assembly (ejector spring roll pin) - Gas Rings - Set of 3 What firearm models does the manufacturer say Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete is compatible with? AR-10