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Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete Up to 14% Off and Coupon Available w/ Free S&H — 8 models

Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
1 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
2 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
3 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
4 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
5 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
6 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
7 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803
8 of 16 images
Cryptic Bolt Carrier Group - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
9 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
10 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
11 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
12 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
13 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
14 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
15 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803
16 of 16 images
Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803

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Questions & Answers
Customer Reviews
Most Recent Reviews
Excellent BCGs by Mike, Verified Owner, April 26, 2024
The Treated Versions of the Cryptic BCGs are excellent BCGs. The BCG has a coating on it that helps keep it clean and facilities the movement of the BCG in the firing cycle. Brass consistently ejects at the 3:00 to 4:00 position. The coated versions ...
Read More...
Most Recent Reviews
This is the one you want. Pull the trigger! by cowflaps, Verified Owner, December 13, 2023
This is as much a piece of art as much as it is the heart of my 6.8 SPC hog gun. The fit and obviously the finish is beyond most all other BCGs, and the quality of the carrier steel (aircraft quality 8620 treated to 60-61 Rockwell) and bolt (Carpent...
Read More...
Most Recent Reviews
Im glad I shot the lock off my wallet by cowflaps, Verified Owner, December 6, 2023
Yes. It’s a beautiful BCG, with a perfect finish and flawless functionality. Headspace was perfect with my ARP 14.5 barrel and with the smaller bolt rim size I wanted to have something that I could have 100% confidence in. This particular finish loo...
Read More...
Read All 3 Reviews
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Product Info for Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete

Coated Bolt Carrier Group BCG (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158 steel and shot peened for increased strength per Mil-Spec. HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected).image

Specifications for Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete:

Manufacturer: Cryptic
Fabric/Material: Carpenter 158 Steel, 8620 Aircraft Quality Steel
Carrier Material: 8620 Steel
Bolt Material: Steel
Caliber: .338 Spectre, .224 Valkyrie, 6.8mm Remington SPC
Gun Make: AR Platform
Gun Model: M16, M4, AR-15
Hand: Ambidextrous
Weight: 11.55 oz
Included Accessories: Standard

Features of Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group BCG - Complete

  • Reduced Carbon Fouling;
  • Easier Cleaning;
  • Full Auto Carrier (Backward compatible with all semi-auto rifles)

Package Contents:

  • Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group - Complete
  • Gas Key
  • Key Staked with Grade 8 Screws
  • Bolt w/ Spring and Ejector
  • Extractor w/ Spring and viton O-ring
  • Firing Pin
  • Cam Pin

What firearm models does the manufacturer say Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete is compatible with?

The manufacturer suggests that Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete is compatible with AR-15, M4, M16

Cryptic 6.8mm SPC/.224 Valkyrie/.338 Spectre Bolt Carrier Group (BCG) - Complete Orderable Models

List of Orderable Models

  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Magnese Phosphate, CC-0804 , MPN: CC-0804 , Code: 4ZT-BCG-CRYC15-CC-0804
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Nickel Boron, CC-0805 , MPN: CC-0805 , Code: 4ZT-BCG-CRYC15-CC-0805
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Black, CC-0800 , MPN: CC-0800 , Code: 4ZT-BCG-CRYC15-CC-0800
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Black Nitride, CC-0806 , MPN: CC-0806 , Code: 4ZT-BCG-CRYC15-CC-0806
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Midnight, CC-0809 , MPN: CC-0809 , Code: 4ZT-BCG-CRYC15-CC-0809
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Bronze, CC-0802 , MPN: CC-0802 , Code: 4ZT-BCG-CRYC15-CC-0802
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Silver, CC-0803 , MPN: CC-0803 , Code: 4ZT-BCG-CRYC15-CC-0803
  • Cryptic Bolt Carrier Group BCG - Complete 6.8mm SPC/.224 Valkyrie/.338 Spectre, Mystic Gold, CC-0801 , MPN: CC-0801 , Code: 4ZT-BCG-CRYC15-CC-0801
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Last updated 2026-09-23 UTC.