

Received my Fail Zero BCG from Rich a little while ago and I am very happy.
Mated the BCG with a BCM charging handle, Diemaco IUR and LMT lower.
It seems to run/slide very smoothly and has a lubricious quality to it so it is slippery to the touch but not overly so.
When new and when the bolt is cleaned, it looks dirty but that is just the way the finish appears (picture 1).
I did not apply any lube to the BCG or any other components and just ran it through the new IUR & lower.
Dirty bolt (picture 2) prior to cleaning.
The results - no failures of any kind with AE 55g & 62g FMJ along with MFS 62g SP.
Under 200 rds. fired in multiple magazine types including PCV-50 Beowulf mags, Gen 2 & 3 Pmags, Surefire 5/60, IWI 5/30, ASC/RRA LAR pistol mags and OKAY Industries 5/30 mags.
The cleaning as can be expected, was super easy as the EXO treatment makes a huge difference in the time it takes.
As taken from the Fail Zero website…
Description
This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critcal parts are coated with EXO Nickel Boron technology that provides permanents dry lubricity, extreme durability, increase wear and corrosion resistance. Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
Nickel Boron treated parts include:
Bolt & Extractor (5.56/.223 compatible)
Bolt Carrier
Extractor
Cam Pin
Carrier Key
Firing Pin


Product information :
FAIL ZERO 009-FZM16/4-01-NH 5.56/.223 AR15/M4 Bolt Carrier Group, EXO NICKEL BORON COATED (HEAVY/FA TYPE)
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