Return to 16" AR-9 / AR-15 9MM 1x10 4150 CrMoV MELONITE NITRIDE BARREL
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5 of 5 Smooth February 12, 2023
: Aaron Ferro from Amherst, VA United States  
Runs smoothly.
I would buy it again
Just remember that the threads are 1/2-36

Mas defense makes the best products

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4 of 5 First Glance, No range time yet February 11, 2023
: Joe R. from "Northern California", WA State  
Barrel looks great & was packed good and arrived without damage. Shipping was quick and arrived ahead of expectations.
I can only speak for look & fitment to upper with 10" free float as no time for a test drive @ range. Fit & finish is nice. This barrel is exactly 16" no buffer, has no Identifier/markings on it, No caliber, no twist rate or name.
Threads are 1/2-36.
My configuration will be a standard AR upper w/o ejection port cover, paired with Tennessee Arms polymer lower with intentions to use Mean Arms Endo-Mags.

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5 of 5 Satisfied Customer February 2, 2023
: from Grand Blanc, MI United States  
This is the 4th time I have used them and I am very happy with the large selection of products and prices. They ship fast and I am very please with the quality level of the parts and the way they package them for shipping.

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5 of 5 What sBr February 2, 2023
: Melodie Yarbrough from Midland, TX United States  
Perfect for my 9 that was a scary pistol now that BrAcEs are the devil.

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5 of 5 Well Made! December 21, 2022
: Joe P. from GRANTS PASS, OR United States  
Bought two of these barrels to finish a couple of AR 9mm carbines.
Quality of the machining and finishes very good!
Still waiting on dedicated 9mm lowers to arrive, so no test firing yet.

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5 of 5 Quality Merchandise February 16, 2021
: Matthew G. from Alabaster, AL United States  
I’ve been wanting a 9mm AR for a while now and finding parts mid-pandemic has been a task. Not only did my barrel ship quickly, it arrived quickly and was very securely packaged. The barrel fit perfectly and I can’t wait to get out to the range. The customer service has been nothing less than 5 star.

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5 of 5 Price, service, quality February 15, 2021
: Craig Sullivan from North Billerica, MA United States  
Expected to wait a while for this to get to me with the message on the front page. Came faster than expected and as expected.  Been ordering from MAS for years- keep coming back.

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5 of 5 February 11, 2021
: Fernando Espino from Goodyear, AZ United States  


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5 of 5 New 16'' Barrel February 1, 2021
: Zachary Harris from Dickson, TN United States  
I wanted to give a great review because the shipping and packaging was excellent and the barrel looks great.  I have not been able to test it yet, but if there are any issues I will definitely report back.  I wanted to give these guys a shot and it looks like they did a great job.

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5 of 5 Nice barrel January 17, 2021
: G.R. from OH United States  
Haven't shot it yet, but looks and fits great and should work just fine. Have ordered from several times before and nothing has disappointed me yet.

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