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Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete Up to 14% Off w/ Free Shipping — 8 models

Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Black Nitride, CC-BAC-0206
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Magnese Phosphate, CC-BAC-0204
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Nickel Boron, CC-BAC-0205
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Bronze, CC-BAC-0202
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Gold, CC-BAC-0201
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Midnight, CC-BAC-0209
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Silver, CC-BAC-0203
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Black Nitride, CC-BAC-0206
1 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Black Nitride, CC-BAC-0206
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Magnese Phosphate, CC-BAC-0204
2 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Magnese Phosphate, CC-BAC-0204
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Nickel Boron, CC-BAC-0205
3 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Nickel Boron, CC-BAC-0205
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Bronze, CC-BAC-0202
4 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Bronze, CC-BAC-0202
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Gold, CC-BAC-0201
5 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Gold, CC-BAC-0201
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Midnight, CC-BAC-0209
6 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Midnight, CC-BAC-0209
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Silver, CC-BAC-0203
7 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Silver, CC-BAC-0203
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200
8 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200
9 of 9 images
Cryptic Bolt Assembly - Complete, .308 WIN/7.62x51mm, Mystic Black, CC-BAC-0200

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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
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
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.
1/1 found this helpful
Helpful Positive Review
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.
1/1 found this helpful
Most Recent Reviews
ar 308 bolt assembly by Charlie P, Verified Owner, March 8, 2026
doesn't fit the dpms carrier i have. Not a complete assembly either. No cam pin, firing pin, firing pin retainer
0/3 found this helpful
Most Recent Reviews
Works well in a Live Free Armory "Battle Rifle" LR308 by PstCntrl, Verified Owner, June 2, 2026
I got this bolt as a spare, but I always test my spares. Installed in the stock carrier and took to a range session just to make sure it runs. A few boxes through it. No issues.
Most Recent Reviews
AR 308 bolt by Charlie P, Verified Owner, March 9, 2026
I previously gave this bolt assembly a negative review. I take it back. Nothing is wrong with the bolt. My bolt carrier is deficient. It is not properly drilled internally for the bolt assembly to fit. It's a bargain part I bought for $20 from a well...
Read More...
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.
Read All 6 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

What firearm models does the manufacturer say Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete is compatible with?

The manufacturer says that Cryptic .308 WIN/7.62x51mm Bolt Assembly - Complete is compatible with AR-10

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

List of Orderable Models

  • 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, Magnese Phosphate, CC-BAC-0204 , MPN: CC-BAC-0204 , Code: 4ZT-BCG-CRYC03-CC-BAC-0204
  • 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 Gold, CC-BAC-0201 , MPN: CC-BAC-0201 , Code: 4ZT-BCG-CRYC03-CC-BAC-0201
  • 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, Mystic Black, CC-BAC-0200 , MPN: CC-BAC-0200 , Code: 4ZT-BCG-CRYC03-CC-BAC-0200

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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Last updated 2026-08-14 UTC.