HOME > *** SALE *** > MAS DEFENSE >

AR-9 9MM BOLT CARRIER GROUP - GLOCK AND COLT BCG - MELONITE NITRIDE
AR-9 9MM BOLT CARRIER GROUP GLOCK AND COLT BCG - MELONITE NITRIDE
 
MSRP: $145.00
Our Price: $129.99
SALE PRICE: $109.99

Stock Status: In Stock


Product Code: MAS00103408
Qty:

DESCRIPTION
 
AR-9 9MM BOLT CARRIER GROUP GLOCK AND COLT BCG - MELONITE NITRIDE

- Compatible with Colt and Glock Style Lowers
- May not work with aftermarket triggers.

Complete and ready to drop into your 9mm AR15 upper. This unit is ramped for use with a standard AR or M16 hammer; no more having to purchase an additional non-standard part. Will not function with dedicated 9mm Hammer. Requires use of Standard Hammer. This BCG will work with Colt AND Glock style AR9 Lowers.

Melonite Nitriding treatment turns standard chrome moly steel into very slick, hard and corrosion resistant steel. The Melonite process is a treatment done to both the inside and outside of the BCG. The slick surface will never peel, is thicker than chrome lining and will reduce the amount of friction created. Less friction equals less surface wear which will extend life. Another added benefit is carbon does not easily adhere to this surface making your cleaning job that much easier.

  • Improved Friction Properties (0.45 CoF)
  • Enhanced Corrosion Resistance
  • Harndess: 55 HRC
  • Color: Slick Black Surface
  • Anti-Scuffing / Seizing Protection
  • Improve Lubricity
  • Faster Speeds and Feeds
  • Easy Cleanup
  • 16 oz



DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.

RELATED ITEMS
16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 12.62" M-LOK RAIL 8.3" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 9.87" M-LOK RAIL FORGED CHARGING HANDLE AR-15 - DUAL PULL AMBIDEXTROUS GEN 1 5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 4.2" M-LOK RAIL
SALE PRICE: $239.99
SALE PRICE: $237.99
SALE PRICE: $19.99
SALE PRICE: $219.99
16" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 12.62" M-LOK RAIL 8" 9MM BARRELED UPPER - MAS NERO 9.87" M-LOK RAIL FORGED CHARGING HANDLE - DUAL PULL AMBIDEXTROUS AR-15 5.25" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 4.2" M-LOK RAIL

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 Great product, Insane quality May 20, 2026
: Ronald Baker from GRAVETTE , AR United States  
This BCG was superior, even to some of the high end ones.  Function, quality, etc is unmatched..

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 AR-9 9MM BOLT CARRIER GROUP - GLOCK AND COLT BCG - May 2, 2026
: Van Callender from Roswell, GA United States  
The AR-9 9MM BOLT CARRIER GROUP - GLOCK AND COLT BCG - MELONITE NITRIDE shipped and arrived very quickly!  I'm impressed by the quality of the material and coating applied to the BCG.  This is a very pleasant purchase!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Great Ar9 Bolt Carrier January 17, 2025
: Connor from Raleigh, NC United States  
Love the design of the BCG, first dive into AR9 and super easy to get parts from MAS Defense.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 BCG October 23, 2024
: Doug Hall from Hot Springs, AR United States  
I recently completed an AR-9 build with a BCG from another company. I had miss feeds constantly and when comparing parts with a friend's AR we noticed that the BCG was machined differently. I tried working with the "other" company with no positive results. I purchase a BCG from MAS and the issue has been resolved. MAS will have all of my business!

Was this review helpful to you?

  0 of 0 people found the following review helpful:
 
5 of 5 Good September 29, 2023
: RAF  
It makes to be of good quality and good VALUE.  This is my 2nd on some AR 9 I'm building

Was this review helpful to you?

View All Customer Reviews