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M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON
M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON AR-15


 
MSRP: $175.00
Our Price: $164.99
SALE PRICE: $109.99

Stock Status: (Out of Stock)

Product Code: MAS00103210
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DESCRIPTION
 
M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON

If purchasing a BCG for a barreled upper, we recommend an AR15 Profile BCG for mid-length and rifle gas systems.

Nickel Boron has proven itself to be the most durable finish on the market. It's so good that it's being adopted by the Military and many Government agencies. It will never chip, peal, or flake off. It's much smoother than Hard Chrome, it's easier to clean and you can run it almost lube free for thousands of rounds due to it's self lubricating properties. These BCG's are a huge improvement over a Phosphated BCGs. They are even an improvement over Hard Chrome.

  • Nickel Boron Plating is completed by WMD or UCT
  • Bolt: MPI Tested Heat Treated and Shot Peened 9310 or C158
  • Extractor: Precision Machined Heat Treated and Shot Peened Billet
  • Gas Rings: Stainless Steel per Mil-Spec
  • Carrier: M16 Profile Carrier 8620
  • Gas Key: 4140 Steel
  • Gas Key Screws: Grade 8 Properly Staked
  • Cam Pin: Precision Machined
  • Retaining Pin: Precision bent and cut to length
  • Firing Pin: Stainless Steel
  • Assembled ready to drop in your AR15

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AR-15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG 16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 12.62" M-LOK RAIL 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - MID LENGTH GAS AR-15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON
MAS DEFENSE 15" NERO M-LOK FREE FLOAT - BLACK M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE
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MAS DEFENSE 15" NERO M-LOK FREE FLOAT M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 163 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 October 31, 2023
: Michael Riley from North Haven, CT United States  
Awesome BCG for the money! Can’t beat it.

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  0 of 0 people found the following review helpful:
 
5 of 5 Nice bcg August 25, 2023
: PR from Woodbine, MD United States  
Looks good.  Very good deal.  Always impressed with Mas Def

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  0 of 0 people found the following review helpful:
 
5 of 5 Review April 18, 2023
: from Charlotte, NC United States  
Fast shipping great product

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  0 of 0 people found the following review helpful:
 
5 of 5 Nickel-Boron BCG November 29, 2022
: Turner from DAVIDSONVILLE , MD United States  
I cracked the cheap PSA bolt I bought when I built my AR and needed a replacement. I decided I wanted a Nickel-Boron coated BCG after reading about them, and after I shopped around I found the one offered by MAS Defense. It dropped right in without issue, I've put about 200 rounds through it last weekend and it functions flawlessly. I'll be replacing my other rifle BCG with one of these in the near future.

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  0 of 1 people found the following review helpful:
 
5 of 5 High quality BCG November 8, 2022
: Ronald Camp from Dewey, AZ United States  
Great nickel boron bcg

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