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This Failzero Bolt Carrier Group (BCG) 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 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.

All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability, increase wear and corrosion resistance.  FailZero's patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.

Features:

  • M16/Auto carrier is machined from 8620 steel
  • Carrier is laser etched with the FailZero logo 
  • Bolt is Carpenter 158 steel
  • Bolt is HPT/MPI and shot peened
  • Bolt is Marked "M" and laser etched with the FailZero logo
  • Gas key is attached with Grade 8 hardware and torqued to spec
  • Gas Key is staked to spec
  • All critical parts are coated with EXO nickel boron technology
  • Made in USA.

Nickel Boron treated parts include:

  • Bolt & Extractor (5.56/.223 compatible)
  • Bolt Carrier
  • Extractor
  • Cam Pin
  • Carrier Key
  • Firing Pin

I love this BCG. Clean up is easy and it runs great with little oil. Over 200 rounds through with no issues. As usual, Toms Tactical service and shipping is awesome. Great price too. I will be ordering another one of these.

08/08/2017

Sick BCG, Tom's was equally as awesome!

07/25/2017

Great product at a good price and free shipping makes it a great deal. It's fail zero, you can't lose. I've run 240 rounds through it with no issues and clean up was a lot easier than the average bcg. It's worth paying s little extra.

05/30/2017

Smoother in the rifle, nice polish

Tomstactical email me when ordered it with my new upper to headspace it

04/13/2017

Excellent BCG, very smooth, no machining marks. Only complaint is the gas key could have been staked a little better. But 500 round, not a single issue. Can't beat the price/ service from Toms Tactical

03/16/2017

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Fail Zero Nickel Boron EXO M16 Bolt Carrier Group Auto BCG

  • Brand: Fail Zero
  • Product Code: FZM16BCG
  • Availability: Out Of Stock
  • $159.95
  • Free Shipping

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