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14.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
14.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
 
MSRP: $314.00
Our Price: $296.99
SALE PRICE: $246.99

Price with Selected Options: $246.99

Stock Status: In Stock


Product Code: MAS-145N2-MDBN-00

Upper Receiver Options:


Barrel Options:


Handguard Options:


Gas Block Options:


Gas Tube Options:


Muzzle Device Options:


***ON SALE - Choose a Bolt Carrier Group:


***ON SALE - Choose a Charging Handle:



Qty:  
DESCRIPTION
 
14.5" 5.56 / .223 BARRELED UPPER - MIL SPEC BARREL NUT - BALLISTIC ADVANTAGE BARREL

The options listed below come standard with this barreled upper. The drop down options listed above allow you to customize your build. You can leave them as is, change one option or change them all! We let you build your upper the way you want it built!

1. Upper Receiver - 7075 T6 Aluminum A4. Precision Machined to Mil-Spec Tolerances. Black Hardcoat Anodized Mil-Std-171 Type III. M4 Ramps, Forward Assist, Ejection Door.

2. Barrel - 14.5" 5.56 / .223 1x7 Ballistic Advantage M4 Contour Profile 4150V Melonite Nitride - Modern Series BABL556009M

3. Handguard - Mil Spec Barrel Nut

4. Gas Block - .750 Low Profile Steel Melonite Nitride Treated Gas Block

5. Gas Tube - Carbine Length Stainless Steel Gas Tube

6. Muzzle Device - A2 Flash Hider

Bolt Carrier Groups and Charging Handles are sold separately.

All barreled uppers are head spaced and test fired to ensure function.

ALL LAWS APPLY. IT IS THE RESPONSIBILITY OF THE BUYER TO UNDERSTAND ALL LAWS REGARDING PURCHASE AND OWNERSHIP OF THIS UPPER. WE STRONGLY URGE YOU TO CONTACT YOUR LOCAL FFL AND/OR THE ATF WITH ANY AND ALL QUESTIONS TO MAKE SURE YOU UNDERSTAND THE LAW BEFORE PURCHASING THIS ITEM.

***80% LOWERS CANNOT BE PURCHASED WITH BARRELED UPPERS OR BUILD KITS. ORDERS THAT INCLUDE THEM WILL BE CANCELLED AND CHARGED A 15% CANCELLATION FEE***.


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M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT MELONITE NITRIDE BCG FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN) M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - NICKEL BORON AR-15

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 9 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Awesome product July 19, 2023
: Z. Taylor from Smithfield, NC United States  
Awesome product, great shipping, and awesome customer service. MAS DEFENSE is the gold standard for local companies trying to provide services to the masses!

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  0 of 0 people found the following review helpful:
 
5 of 5 Customizable August 29, 2022
: conway400 from Conway, AR United States  
I liked being able to click a few options and get it the way I wanted. Shipped fast as always. Fit well with my Aero lower. This is my second upper from MAS and the first is still a high performer!

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  0 of 0 people found the following review helpful:
 
5 of 5 Fast shipping great quality. July 26, 2020
: Mike Casey from Woonsocket , RI United States  
They got it shipped out to me quickly and the quality was great. I would buy again. I’m waiting for more uppers to come in stock so I can order more !

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  0 of 0 people found the following review helpful:
 
4 of 5 Good quality July 22, 2020
: Garrett from AZ United States  
I am happy with my 14.5" 5.56/.223 barreled upper - Mil Spec upper. I like the fact that I could pick and choose the parts that come attached to it. The only thing that kept me from a full 5 stars was that on the receiver there was a small knick where the upper receiver meets the lower receiver. But overall it did not affect the functionality of my build. Other than that verry satisfied with my purchase.

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  0 of 0 people found the following review helpful:
 
5 of 5 14.5 ballistic advantage upper June 18, 2020
: Eugene Bisson from Pensacola, FL United States  
I purchased this barreled upper and received it in a few days. put together a badass " Mas Defense" AR from all parts that I've collected from MD over a year.went to the range and I have to say that I am amazed at how awesome this barrel shoots..100 yards and the worst group was .60 !!!!! 62,55 grain the .62 grain groups were clover leafs and 55grain was .60 .. there was groups that were 2 inch because of dialing the optics in, after that BINGO !!!

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