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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: In Stock

Product Code: MAS00103210
Qty:

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

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 160 CLICK HERE TO WRITE A REVIEW »

  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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5 of 5 High quality BCG November 8, 2022
: Ronald Camp from Dewey, AZ United States  
Great nickel boron bcg

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  0 of 0 people found the following review helpful:
 
5 of 5 pretty parts October 25, 2022
: KC from Saint Francis, KS United States  
Finish looks awesome, can't wait to try them out this weekend !

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  0 of 0 people found the following review helpful:
 
5 of 5 August 13, 2022
: Darrin Ducote from Bridge City, TX United States  


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  0 of 0 people found the following review helpful:
 
5 of 5 Bolt carrier June 9, 2022
: Wayne Smith from Pleasant Garden, NC United States  
Very nice.

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