Return to 7.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE NERO 7.25" M-LOK RAIL
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  0 of 0 people found the following review helpful:
 
5 of 5 7.5" 300 BLACKOUT AR-15 BARRELED UPPER March 16, 2024
: Charles Cramer from Nanty Glo, PA United States  
Great quality, well crafted exceeds expectation.

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5 of 5 300 blk upper January 18, 2024
: Eric Snavely from Lusby, MD United States  
This upper feels good and functions great will definitely you this company in the future

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5 of 5 Non-Shooting Review August 10, 2022
: C Valencia from FV, NC US of A  
The quality of this upper is excellent! Well made/designed and Im looking forward to get it to the range soon.

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5 of 5 7.5" 300 BLACKOUT December 17, 2021
: BRUCE HALL from Midway, GA United States  
`GREAT COMPANY SELLING GREAT PRODUCTS

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5 of 5 May 23, 2019
: Michael Weber from Springville, AL United States  
Great looking upper! I really like the hand guard. Can't wait to take it too the range. Fast Shipping!!

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5 of 5 Incredible value November 14, 2018
: Houston from CA United States  
I have been using Mas defense components for years now. You cannot beat the value you get with their products without spending a whole lot more. Everything has been reliable and consistent.

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5 of 5 Great upper! November 10, 2018
: Shawn Lanier from Elkview, WV United States  
The complete uppers I saw on the site looked great for a couple of builds I am doing. I ordered 1 to check it out before buying another. I received it yesterday and mounted it immediately. It looks great! The amount of parts I could melonite was a plus. The website upgrade selections was a nice feature. Buying another soon!

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5 of 5 Competitive price with better barrel selection April 1, 2018
: Justin G  
Finding .300 BLK assembles uppers in 1:7 twist proved difficult, thankfully MAS Defense allows you to pick and choose among various lengths and finishes. Many competitors in this sector only offer 1:8twist. Upper arrived inside of one week. Quality seems great. Havent got out to shoot but am impressed with the finish, the hand guard is slim and comfortable. The flash hider was timed properly. For the money I couldnt be happier.

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