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Questions & Answers
on the M16/M4 Bolt Carrier Group ,,What does it mean by No Hammer?? Expert Answer

It means it will not come with a hammer for the trigger group. Some of the FailZero bolt carrier groups come with a nickel boron coated hammer, but these models will not come with that hammer.

by Armando R., Gear Expert, March 23, 2020
Will this BCG work with a 350 legend? My understanding is the 350 uses a standard 5.56/223 bolt. Expert Answer

Yes, technically the .350 Legend can use a standard AR-15 bolt carrier group.

by Armando R., Gear Expert, September 12, 2019
Customer Reviews
Helpful Positive Review
Decent bcg by Just some dude., October 24, 2019
This bcg is a great find at the price. Remember this is EXO nickel boron with with a black coating applied over that wears off on contact points. I think it looks cool as it brakes in, but some might get bent that it loses its prettiness. The gas key...
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11/11 found this helpful
Helpful Positive Review
All good so far... by Dave, November 23, 2019
Ive only put about 300 rounds through my rifle with the new FZ bcg. So far I'm very happy. On the cheaper end for nickle boron group and the coating is slick as snot. Fit seems right on; I've swapped bolts with other carrier(and vise versa). Definit...
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4/4 found this helpful
Helpful Positive Review
Good product by Hart, December 21, 2020
This is a good bcg I have used it and have had no issues. It looks great and funtion great my only negative is the bolt itself is a little harder to clean the carbon off of. I read reviews saying it was the super easy to clean. the rest of it wipes c...
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4/4 found this helpful
Helpful Positive Review
looks pretty by eagle eye, October 29, 2024
No doubt this looks good. Only time will tell if it stays pretty. Cleaning it seems harder, you can see every little gunk unlike the black factory BCG. Also not as easy to clean as you would think, carbon seems to stick to it pretty good and I leave...
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1/1 found this helpful
Helpful Positive Review
Runs like a champ by Jackal, May 30, 2021
I have one of these in my AR-15. I used a BCM extractor upgrade kit, and a milspec hammer spring (not sure if nessessary), but my AR-15 eats steel like it was brass. I shoot brass and Wolf steel loads with no problems/ ftf. These things are solid. Th...
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4/4 found this helpful
Helpful Positive Review
Awesome finish by Banana, April 4, 2020
I’ve only shot a few hundred rounds so far but this bcg works great. The nickel boron coating is very easy to clean and requires minimal lubricant. It also disassembles very easily for quick and easy cleaning. Highly recommended
7/7 found this helpful
Read All 17 Reviews

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Product Info for FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer

Install a FailZero M16/M4 Bolt Carrier Group BCG, No Hammer to guarantee your rifle performs in any situation. These Bolt Carrier Groups made by FailZero come fully-assembled for easy drop-in installation on most Mil-Spec upper receivers. All essential components of the FailZero M16/M4 5.56/.223 Bolt Carrier Group BCG, No Hammer are treated with an EXO Nickel Boron coating that creates permanent dry lubricity while greatly enhancing both the strength and corrosion resistance of the parts. With reduced friction, your weapon's overall performance will definitely improve. Get the FailZero M16/M4 Full-Auto BCG - No Hammer to ensure your weapon is performing at its potential.image

Specifications for FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer:

Manufacturer: FailZero
Finish: Nickel Boron
Fabric/Material: Steel
Carrier Material: 8620 Steel
Bolt Material: Steel
Gun Make: AR Platform
Gun Model: M16, M4, AR-15
Condition: New

Features of FailZero M16/M4 Bolt Carrier Group BCG, No Hammer:

  • Comes fully assembled and ready to drop into most mil-spec M16, M4 or AR15 upper receivers
  • All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance

Package Contents:

  • FailZero M16/M4 Bolt Carrier Group, No Hammer

FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer Orderable Models

List of Orderable Models

  • FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, Black, FZ-M164-01-NH-BLACK , MPN: FZ-M16/4-01-NH-BLACK , UPC: 094922014276 , Code: 39X-BCG-RS608-FZ-M164-01-NH-BLACK
  • FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, EXO, FZ009-FZM164-01-NH , MPN: FZ-M16/4-01-NH , UPC: 881314861781 , Code: 39X-BCG-RS608-FZ009-FZM164-01-NH
  • FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, Matte, FZ-M164-01-NH-MATTE , MPN: FZ-M164-01-NH-MATTE , UPC: 094922034977 , Code: 39X-BCG-RS608-FZ-M164-01-NH-MATTE

FailZero M16/M4 Bolt Carrier Group (BCG), No Hammer Unavailable & Discontinued Models

List of Unorderable Models

  • USED FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, EXO, FZ009-FZM164-01-NH, EDEMO2, Condition Fair, Scratches , MPN: FZ-M16/4-01-NH-EDEMO2 , Code: 39X-BCG-RS608-FZ009-FZM164-01-NH-EDEMO-SC-D
  • DEMO, FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, EXO, FZ009-FZM164-01-NH , MPN: FZ009-FZM164-01-NH-DEMO , Code: 39X-BCG-RS608-FZ009-FZM164-01-NH-DEMO
  • USED FailZero M16/M4 Bolt Carrier Group BCG, No Hammer, EXO, FZ009-FZM164-01-NH, EDEMO1, Used, Condition Fair , MPN: FZ-M16/4-01-NH-EDEMO1 , Code: 39X-BCG-RS608-FZ009-FZM164-01-NH-EDEMO1
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