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Questions & Answers
Will this work in a left-hand eject rifle? The ad says the bolt is ambidextrous. I purchased one, and it doesn’t seem to be ambidextrous.

No it will not, but you can buy a left hand direct from Cryptic website.

by UncleDano, Verified Owner, May 1, 2025
Does this bolt carrier group fire all three rounds? 308 7.62 or 6.5 ? It is also for an ar 10 platform?

This is not the H.P. bolt, so it is not well suited for the 6.5 Creedmoor.

by UncleDano, Verified Owner, May 1, 2025
Customer Reviews
Most Recent Reviews
High Quality bolt by Philo Beddoe, Verified Owner, February 5, 2025
I used this bolt to replace the stock DPMS bolt on my LR308. This bolt is high quality, mine is the silver version and the coating is top notch. Haven't used it yet for reliability testing.
Most Recent Reviews
LR.308 Bolt by Jesse Sellers, Verified Owner, November 3, 2024
I actually used this bolt on a 6.5 creedmoor build and it worked great. I had a coupon and a few OP bucks to spend so I got this one. Headspaced great to the rifle and had extraction and ejection.
Most Recent Reviews
Crypyic makes great B.C.G's by perry-bill, Verified Owner, October 30, 2024
This bolt head fits perfect with their BCG's, AND is functional with several other after-market .308 BCG's as well. DO NOT use without a visual confirmation of critical matching measurements and smooth cycling with original BCG/receiver.
Read All 3 Reviews

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Product Info for Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete

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.image

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

Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete Orderable Models

List of Orderable Models

  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Gold, CC-BAC-0201 , MPN: CC-BAC-0201 , Code: 4ZT-BCG-CRYC03-CC-BAC-0201
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200 , MPN: CC-BAC-0200 , Code: 4ZT-BCG-CRYC03-CC-BAC-0200
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Black Nitride, CC-BAC-0206 , MPN: CC-BAC-0206 , Code: 4ZT-BCG-CRYC03-CC-BAC-0206
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Nickel Boron, CC-BAC-0205 , MPN: CC-BAC-0205 , Code: 4ZT-BCG-CRYC03-CC-BAC-0205
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Bronze, CC-BAC-0202 , MPN: CC-BAC-0202 , Code: 4ZT-BCG-CRYC03-CC-BAC-0202
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Silver, CC-BAC-0203 , MPN: CC-BAC-0203 , Code: 4ZT-BCG-CRYC03-CC-BAC-0203
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Midnight, CC-BAC-0209 , MPN: CC-BAC-0209 , Code: 4ZT-BCG-CRYC03-CC-BAC-0209
  • Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Magnese Phosphate, CC-BAC-0204 , MPN: CC-BAC-0204 , Code: 4ZT-BCG-CRYC03-CC-BAC-0204

Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Nickel Boron, CC-BAC-0205 , MPN: CC-BAC-0205-EDEMO , Code: 4ZT-BCG-CRYC03-CC-BAC-0205-EDEMO-IN-B
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