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AR15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE
AR15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG


 
RETAIL: $150.00
Our Price: $139.99
SALE PRICE: $129.99

Stock Status: In Stock

Product Code: MAS00103108
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DESCRIPTION
 
AR15 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE

Melonite Nitriding treatment turns a standard chrome moly steel barrel into a very lick, hard and corrosion resistant barrel. Unlike chrome lining, the Melonite process is a treatment done to the surface instead of adding a layer of material. This treatment is done to both the inside and outside of the BCG. The slick surface will never peel, is thicker than chrome lining, will not negatively affect accuracy as chrome lining does and will reduce the amount of friction created. Less friction equals less bore surface wear which will extend the barrel life. Another added benefit is carbon does not easily adhere to this surface making your cleaning job that much easier. This technology has been used by Glock, Springfield and Heckler & Koch for years and is gaining popularity as more companies are offering their products with this treatment.

  • Melonite Nitrite Treated
  • 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: AR15 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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16" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 12.62" M-LOK RAIL MAS DEFENSE 15" NERO M-LOK FREE FLOAT 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE NERO 15" M-LOK RAIL - MID LENGTH GAS

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 101 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Great product June 16, 2021
: Jeff from , Oregon  
Functions flawlessly

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent June 11, 2021
: Nolan from Lowell , AR United States  
Mas Defense continues to deliver top quality product with exceptional customer service.  This upper is no exception.  Great quality all around.  Keep up the great work Mas Defense!

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent product June 1, 2021
: DAVID NICODEMUS from Fort Smith, AR United States  
Excellent products and fantastic customer service

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  0 of 0 people found the following review helpful:
 
5 of 5 Quality parts is a must... June 1, 2021
: Bruce Reed from United States of America  
The bolt carrier was received last week in record time as well as another order. As an OLD Marine, cleaning and inspecting new parts is a must. With the Nitride treatment inside and out, this bolt carrier should go over twenty thousand rounds, but will be use in a match SPR firing 12-15 a minute "well placed shoots".
Thanks to MAS Defense crowd.  Semper Fi

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  0 of 0 people found the following review helpful:
 
5 of 5 Clean bcg January 8, 2021
:  
Looks like a high quality piece finished well!

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