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Questions & Answers
do I need to change anything on the BCG to make it work with a 6.5 creedmoor or is it ready to put in upper and fire? Expert Answer

You do not need to change anything. This bolt carrier group should drop into a 6.5 Creedmoor upper and function.

by Armando R., Gear Expert, November 5, 2019
this says it is 6.5 creedmoor compatible, does the ejector that comes with it fit a 6.5 or do I need to get a new 6.5 ejector to make it work. Expert Answer

The bolt carrier group and small parts are technically meant for a .308, but Fail Zero does mention, "Note: DPMS Pattern and 6.5 Creedmoor compatible". So the major components are compatible, but overall this is meant to function shooting .308.

by Armando R., Gear Expert, November 5, 2019
Customer Reviews
Helpful Positive Review Loyal customer by Woosh, Verified Owner, June 2, 2025
I bought a.308 Fail Zero BCG a couple years ago. Only shot maybe 50 rounds through it, not sure what happened but the ejector got stuck and damaged. With out question they exchanged it. I own a couple of these and will purchase again if I ever need a...
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1/1 found this helpful
Helpful Positive Review Came Without Logo on BCG Face by boombop, Verified Owner, November 4, 2024
Haven’t tested yet. Fits into aero M5e1 308 upper with no issue, just questioning the lack of the FZ logo on the right face, haven’t read anything online about a missing logo but i thought it was strange it doesn’t have it
1/1 found this helpful
Helpful Positive Review Perfect in everyway by T-Mac, January 18, 2024
I have been building Ar's for sometime, mainly Ar-15 and was looking to start my Ar-10 I have always wanted. Well I needed a perfect BCG (bolt carrier group) and I found it. This bad boy here will take all you can give it with out hesitation. The mor...
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1/1 found this helpful
Helpful Positive Review 308/6.5 cm by Dallas, Verified Owner, March 13, 2023
Bought this for a "budget" 308 build haha, endeyup spending way more than i expected. Bolt runs great with both my criterion barrels, head space was almost perfect on both. No issue and it looks great as well. Never used this brand before and it ha...
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2/2 found this helpful
Helpful Positive Review Under Rated by Kit, December 31, 2022
I've put well over 1000 rds through this bcg. The 10 is a maintenance-after-every-use platform.The only issues I encountered where a bent retaining pin due to build up in the breach. Some sub-par, low cost, alternative, steel cased and likely manufac...
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4/4 found this helpful
Helpful Positive Review Great BCG at a good price! by Dave, September 12, 2022
After careful consideration, I chose this BCG because of the company's commitment to quality. I ALWAYS purchase Made In USA whenever possible for all obvious reasons. The Nickle Boron coating is PERFECT! I could not be happier with my purchase.
2/2 found this helpful
Read All 10 Reviews
Finish: Nickel Boron Caliber: .308 Winchester Gun Make: AR Platform Gun Model: AR-15 Condition: New

Code: 39X-BCG-RS612-FZ-AR10-01-NH

MPN: FZ-AR10-01-NH

UPC: 881314861798

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FailZero AR10 Bolt Carrier Group BCG, Nickel Boron Coated, FZ-AR10-01-NH
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Product Info for FailZero AR10 .308 Bolt Carrier Group (BCG)

Improve your rifles function to ensure optimal performance by installing this FailZero AR10 .308 Bolt Carrier Group BCG. All essential parts of these Bolt Carrier Groups by FailZero are coated with EXO nickel boron that provides a permanent dry lubricity while increasing durability as well as their resistance to corrosion and wear over time. Plus, this coating reduces friction to enhance the overall performance of your weapon. The FailZero AR10 .308 Assembled Bolt Carrier Group BCG is a ready-to-install drop-in part that quickly and easily fits into your firearm. Pick up the FailZero AR10 .308 Bolt Carrier Group BCG w/ No Hammer today to greatly improve you firearm's function to deliver your best shots yet.image

Specifications for FailZero AR10 .308 Bolt Carrier Group (BCG):

Manufacturer: FailZero
Finish: Nickel Boron
Fabric/Material: 9310 Steel
Caliber: .308 Winchester
Gun Make: AR Platform
Gun Model: AR-15
Condition: New
Bolt Material: 9310 Steel
Carrier Material: 8620 Steel
Projectile Caliber: .308 Caliber
Coating: EXO Nickel Boron

Features of FailZero AR10 .308 Bolt Carrier Group BCG

  • .308 Compatible
  • DPMS Pattern and 6.5 Creedmoor Compatible
  • Magnetic Particle Inspected
  • Live Fire Tested

Package Contents:

  • FailZero AR10 .308 Bolt Carrier Group
  • Bolt and Extractor
  • Bolt Carrier
  • Extractor
  • Cam Pin
  • Carrier Key
  • Firing Pin

FailZero AR10 .308 Bolt Carrier Group (BCG) Orderable Models

List of Orderable Models

FailZero AR10 Bolt Carrier Group BCG, Nickel Boron Coated, FZ-AR10-01-NH , MPN: FZ-AR10-01-NH , UPC: 881314861798 , Code: 39X-BCG-RS612-FZ-AR10-01-NH

FailZero AR10 .308 Bolt Carrier Group (BCG) Unavailable & Discontinued Models

List of Unorderable Models

USED, FailZero AR10 Bolt Carrier Group BCG, Nickel Boron Coated, FZ-AR10-01-NH , MPN: FZ-AR10-01-NH-EDEMO , Code: 39X-BCG-RS612-FZ-AR10-01-NH-EDEMO-RE-B
USED, FailZero AR10 Bolt Carrier Group BCG, Nickel Boron Coated, FZ-AR10-01-NH , MPN: FZ-AR10-01-NH-EDEMO , Code: 39X-BCG-RS612-FZ-AR10-01-NH-EDEMO-DF-F
USED FailZero AR10 Bolt Carrier Group BCG, Nickel Boron Coated, FZ-AR10-01-NH, EDEMO7, Used, Condition Like New , MPN: FZ-AR10-01-NH-EDEMO7 , Code: 39X-BCG-RS612-FZ-AR10-01-NH-EDEMO7
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