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Questions & Answers
Can I run 556/223 ammo with this? Expert Answer

The Failzero .224 Valkyrie Bolt Carrier Group (BCG) will not work with .223/5.56. The BCG at the link below will.
https://www.opticsplanet.com/failzero-fail-zero-bolt-carrier-group-5-56mm-black-nitride-ar-15.html

by Hunter, Gear Expert, April 13, 2023
so I've heard to use a 6.8spc bolt w the .234 val. why is this one 224 specific and why is it 10$ more? Expert Answer

This Failzero .224 Valkyrie Bolt Carrier Group is also compatible with the 6.8 SPC II cartridges. The extractor hardware includes a heavy spring, silicone insert, and o-ring to give better extraction tension.

by Ethan, Gear Expert, June 24, 2022
Customer Reviews
Helpful Positive Review
Failzero lives up to their name! by Shooter 379, Verified Owner, May 15, 2020
Very nice BCG! The finish looks great. Staking on gas key is done well. Easy to clean. 300+ rounds with no issues. I would definitely recommend and will purchase another for my next build in the future.
1/1 found this helpful
Helpful Positive Review
FZ 224 Valkyrie BCG by Hog Hunter, Verified Owner, January 24, 2020
Purchased for 224 Valkyrie upper build. Fit and finish acceptable. Tolerances provided excellent match with selected upper and barrel for extreme accuracy. Cycled flawlessly through 300 rounds. Cleaned after range use. Heavy carbon fowling removed in...
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1/1 found this helpful
Helpful Positive Review
Fail zero bcg by Camlifter, October 9, 2018
Built a 224 valkyrie upper. Finding a bcg was like looking for hen's teeth every where on back order. Found the fail zero on op and got it fast. Works great and cleans easy. Great buy. Nb coating is nice. Nice sraking on gas block very well built b...
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1/1 found this helpful
Read All 3 Reviews
Fabric/Material: Steel Carrier Material: 8620 Steel Bolt Material: Steel Caliber: .224 Valkyrie Gun Make: AR Platform Gun Model: AR-15 Condition: New Coating: EXO Nickel Boron

Code: 39X-BCG-FZ224V01NH-EE

MPN: FZ224V01NH

UPC: 881314861804

Product No Longer Available

Product Info for Failzero .224 Valkyrie Bolt Carrier Group (BCG)

Improve your weapon's performance by installing this FailZero .224 Valkyrie Bolt Carrier Group BCG. Each of these Bolt Carrier Groups from FailZero comes fully assembled and ready to install, making it the easiest way to enhance your firearm. All essential components of the FailZero .224 Valkyrie BCG are coated with EXO nickel boron technology for permanent dry lubricity, extreme durability and superior resistance to corrosion and abrasion. Get your FailZero .224 Valkyrie EXO NiB Bolt Carrier Group BCG today for guaranteed performance that's built to last.image

Features of Failzero Fail .224 Valkyrie Zero Bolt Carrier Group BCG

  • Bolt & Extractor (.224 Valkyrie and 6.8 SPC compatible)
  • M16 Cut Bolt Carrier
  • Cam Pin
  • Carrier Key
  • Firing Pin

Package Contents:

  • Failzero Fail Zero Bolt Carrier Group .224 Valkyrie AR-15

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Failzero .224 Valkyrie Bolt Carrier Group (BCG) Unavailable & Discontinued Models

List of Unorderable Models

  • Failzero Fail Zero Bolt Carrier Group BCG .224 Valkyrie Ar-15 , MPN: FZ224V01NH , UPC: 881314861804 , Code: 39X-BCG-FZ224V01NH-EE
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