Return to 16" 300 BLACKOUT BARRELED UPPER - YANKEE HILL 12.52" KNURLED
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  0 of 0 people found the following review helpful:
 
5 of 5 great product January 23, 2020
: from Campbell, MN United States  
really clean looking upper,
packaged well and shipped out fast!
shoots great and fit was perfect.

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5 of 5 Very happy May 9, 2018
: jeffery w  
I recently purchased a .300 Blackout upper with faux suppressor. Very cool stuff. Quick delivery, suppresor was installed on barrel which was a pleasant surprise. Everything was in perfect condition on arrival. Qwik delivery after I put in my order too. This is quality stuff and I will definetly return here for more of my "needs". @ thumbs up guys! Thank you for living up to the recommend I recieved of you.

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5 of 5 Great setup July 17, 2016
: Brian S  
The upper was better than I could had every thought. But I expected nothing less from MAS, Everything fit perfect

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4 of 5 Order received February 9, 2016
: Brandon B  
I received my AAC .300 blackout upper in a timely manner. I was very impressed in the product after looking it over when received. The item is exactly what I wanted.I have yet to take it out in the field yet.

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5 of 5 Great Complete Upper March 31, 2014
: Dion P  
I had the upper in my hand in about a week after ordering and that included the shipping time to get here. Great turn around time! The build was excellent and upon further inspection found that theupper receiver from MAS Defense had the same keyhole forging mark as the receiver on my Colt M4. Both came from the same place. I'll definitely stay a customer.

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  0 of 0 people found the following review helpful:
 
5 of 5 Very nice, LIGHT December 4, 2013
: alberto d  
One thing i really appreciate in a firearm is light weight and this thing is just that... light. I got the government profile barrel to save a few ounces and the alum tube rail. I have not shot it yetbut as long as it cycles I am 100% happy with the purchase. Customer support was top notch at masdefense and their staff was very knowledgeable and helpful with providing specs on items and recommending builds that are right for you.

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