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8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
8.5" 300 BLACKOUT AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
 
MSRP: $321.00
Our Price: $299.99
SALE PRICE: $249.99

Price with Selected Options: $249.99

Stock Status: In Stock


Product Code: MAS-083B1-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
 
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 - 8.5" - 9.5" 300 Blackout Barrel. Click on the drop down box above to choose from our selection.

3. Handguard - Mil Spec Barrel Nut

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

5. Gas Tube - Pistol Length Stainless Steel Gas Tube

6. Muzzle Device - A2 Half Cage

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***.


RELATED ITEMS
M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - MELONITE NITRIDE FORGED CHARGING HANDLE AR-15 - STANDARD TACTICAL LATCH M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID NICKEL BORON M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN)
SALE PRICE: $79.99
Our Price: $24.99
SALE PRICE: $99.99
SALE PRICE: $99.99
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 - NICKEL BORON AR-15 M16 BOLT CARRIER GROUP 5.56 & 300 BLACKOUT BCG - HYBRID GOLD TITANIUM NITRIDE (TiN)

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 24 CLICK HERE TO WRITE A REVIEW »

  0 of 0 people found the following review helpful:
 
5 of 5 Great product February 15, 2024
: Dusty Lee  
Very nice quality and shipped fast. Great to deal with.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great upper March 31, 2023
: CS from Wa  
You get a lot of top quality for the money on this one. If I had it to do over I would have added all the pieces in one order. Adding the BCG charging handle and hand guard all in one shot would have been better and cheaper for me.

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  0 of 0 people found the following review helpful:
 
5 of 5 Love this company July 22, 2021
: Nicholas Glenn from Birmingham AL  
Great upper as always. Fast shipping and good quality. Highly recommend.

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Service May 3, 2021
: Keith Malone from Monroe, NC United States  
I purchased a 8.5” 300 Blackout barrel.  I had a few questions before purchasing.  I was very impressed that they responded so quick….actually got a response first thing the next morning on the 3 occasions I emailed their customer service.  I would definitely use them again….I would just like more product in stock and I would use them for everything.

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  0 of 0 people found the following review helpful:
 
5 of 5 Awesome Attention to detail July 12, 2020
: Brian Rodriguez from Las Cruces, NM United States  
For what I was looking for i can say it was perfect.. i was completely blown away at the whole deal. I took 4 days and over a holiday?!!! Who does that?!! Well These guys do, and I'll gladly do business with them again for my sexy project.

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