Bolt assembly machined from either Mil-Spec Carpenter 158 steel, shot peened for increased strength per Mil-Spec, includes Mil-Spec 4140 billet tool steel extractor w/ 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 .223/5.56/.300 AAC Blackout Bolt Assembly – Complete: Manufacturer: Cryptic Fabric/Material: 4140 Billet Tool Steel, Carpenter 158 Steel Cartridge: .300 AAC Blackout, 5.56x45mm NATO, .223 Remington Gun Make: AR Platform Gun Model: AR-15 Hand: Ambidextrous Included Accessories: Standard Weight: 2 oz Bolt Material: Steel Carrier Material: 8620 Steel Package Contents: Cryptic .223/5.56/.300 AAC Blackout 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
3 reviews for Cryptic .223/5.56/.300 AAC Blackout Bolt Assembly – Complete
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Cryptic
gunsult –
THIS CRYPTIC BOLT NEVER LET YOU DOWN!IT IS REALLY EASY TO CLEAN!
WhiskeyTango –
C158 marked, was a pleasant surprise. Excellent fit and finish.
Douglas –
Cryptic is known for their great quality. I paired this with a Geissele RE bolt carrier. Fits perfectly, checked it thoroughly with my micrometer & calipers. Also their firing pin protrusion was within spec. Will definitely be getting more.