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

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5 of 5 Top tier again April 26, 2023
: Roger Workman from Mint hill , NC United States  
Again I keep coming back to MAS defense and each time I do they never let me down. Quality, fitment, finish all of it is perfect. Don’t sleep on MAS defense!

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5 of 5 PCC February 12, 2023
: Chris L from Republic, WA United States  
I have yet to have any issues with these 9mm bolts. Great price, excellent service.

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5 of 5 February 1, 2023
: Carlos Coty from Buffalo , NY United States  
Quality product.

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5 of 5 AR9 BCG December 6, 2022
: Roy from Glendale, AZ United States  
I picked up this AR9 BCG for my wife’s AR9 MAS upper I got a month prior. It runs flawlessly.

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5 of 5 Works perfect! November 24, 2022
: Jason S from Gaithersburg, MD United States  
Chambered, rounds smooth, perfect ejection.  Works great with 9mm endo mag inserts inside of a 30 rd pmag gen 2.

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5 of 5 bolt carrier September 7, 2022
: Robert Miller from Clio, MI United States  
love the black nitride finish

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5 of 5 dependable bolt August 29, 2022
: Dan from CT United States  
I chose the black BCG due to the FDE colored upper i ordered and it looks and functions perfectly with the heavy buffer . Thanks Mas Defense for the quick delivery .

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5 of 5 My purchase AR-9 bolt carrier group July 28, 2022
: Mike Walker from BEGGS , OK United States  
I try to give good rating when the object I purchase is high quality, has a good price point and quick shipping! MAS defense gets 5 stars, but I wish I could give them another! My only wish is that they had 100% stripped lowers. If they did have them I would order two today!

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5 of 5 Excellent product July 22, 2022
: Justin Weeks  
I am really pleased with this product, great fitment and a quality manufactured item. My shipping seemed to have taken longer than normal which is no reflection on mas defense, I had emailed jr and had a return email within 24 hours. Great customer service.

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