To take full advantage of this site, please enable your browser's JavaScript feature.
Learn how
My Account
View Wishlist
*** BLACK FRIDAY ***
BLEM SALE
MAS DEFENSE
POLYMER80
BALLISTIC ADVANTAGE
FAXON FIREARMS
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
ROCK RIVER ARMS
SB TACTICAL
SYLVAN ARMS
UTG / LEAPERS
BRANDS
A - L
5D TACTICAL
80% ARMS
AERO PRECISION
BALLISTIC ADVANTAGE
DEL-TON
FAXON FIREARMS
FRANKLIN ARMORY
G-FLEX TRIGGERS
GEISLER DEFENCE
HOLOSUN
JSD SUPPLY
M - Z
***MAS DEFENSE***
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
NORTH SIDE KNIVES
POLYMER80
ROCK RIVER ARMS
SB TACTICAL
SHOCKWAVE - KAK
SYLVAN ARMS
UTG / LEAPERS
AR-9
9MM BARRELED UPPERS
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-9 BUILD KITS
AR-9 UPPER PARTS
AR-9 LOWER PARTS
AR-15
AR-15 BARRELED UPPERS
5.56 NATO / .223
7.5" - 8" 5.56 NATO
10.5" 5.56 NATO
11.5" 5.56 NATO
13.9" 5.56 NATO
14.5" 5.56 NATO
16" 5.56 NATO
18" 5.56 NATO
.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
AR-15 BARRELS
5.56 NATO BARRELS
.223 WYLDE BARRELS
300 BLACKOUT BARRELS
AR-15 BCG's / CHARGING HANDLES
HANDGUARDS
ALL HANDGUARDS
ACCESSORIES
DROP IN
4"-5" PISTOL
7" CARBINE
9"-10" SPECTER
11"-13" RIFLE
15"+ EXT RIFLE
AR-15 GAS BLOCKS / TUBES
AR-15 MUZZLE DEVICES
1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
THREAD CONVERTERS
AR-15 LOWER PARTS
LOWER PARTS AND KITS
GRIPS
STOCKS - PISTOL BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
AR-10
AR-10 BARRELED UPPERS
AR-10 UPPER PARTS
AR-10 UPPER RECEIVERS
AR-10 BARRELS
AR-10 BCG's / CHARGING HANDLES
AR-10 HANDGUARDS
AR-10 GAS BLOCK / GAS TUBES
AR-10 MUZZLE DEVICES
AR-10 LOWER PARTS
AR-10 LOWER PARTS KITS
AR-10 TRIGGERS
AR-10 STOCKS - KITS
AR-10 GRIPS
AR-10 80% LOWERS
GLOCK
GLOCK SLIDE PARTS
GLOCK BARRELS
G26 BARRELS
G19 BARRELS
G17 BARRELS
G23 BARRELS
G22 BARRELS
GLOCK SLIDES & PARTS
G43 SLIDES & PARTS
G26 SLIDES & PARTS
G19 SLIDES & PARTS
G17 SLIDES & PARTS
GLOCK FRAME PARTS
GLOCK 43 FRAME PARTS
GLOCK 26/27 FRAME PARTS
GLOCK 19/23 FRAME PARTS
GLOCK 17/22 FRAME PARTS
GLOCK 20/21 FRAME PARTS
76% - 80% FRAMES & JIGS
P80 JIGS
G43 SINGLE STACK
G26/27 SUB-COMPACT
G19/23/32 COMPACT
G17/22 FULL SIZE
G20/21 SF XL SIZE
SIG P320
SIG P320 SLIDE PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
Contact
My Account
658 Griffith Road Suite 111
Charlotte, NC 28217
980-265-1005
[email protected]
Let's Stay In Touch
Facebook
Twitter
Instagram
0
MAS Defense LLC
Contact
Log-In | Account
*** BLACK FRIDAY ***
BLEM SALE
MAS DEFENSE
POLYMER80
BALLISTIC ADVANTAGE
FAXON FIREARMS
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
ROCK RIVER ARMS
SB TACTICAL
SYLVAN ARMS
UTG / LEAPERS
BRANDS
A - L
5D TACTICAL
80% ARMS
AERO PRECISION
BALLISTIC ADVANTAGE
DEL-TON
FAXON FIREARMS
FRANKLIN ARMORY
G-FLEX TRIGGERS
GEISLER DEFENCE
HOLOSUN
JSD SUPPLY
M - Z
***MAS DEFENSE***
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
NORTH SIDE KNIVES
POLYMER80
ROCK RIVER ARMS
SB TACTICAL
SHOCKWAVE - KAK
SYLVAN ARMS
UTG / LEAPERS
AR-9
9MM BARRELED UPPERS
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-9 BUILD KITS
AR-9 UPPER PARTS
AR-9 LOWER PARTS
AR-15
AR-15 BARRELED UPPERS
5.56 NATO / .223
7.5" - 8" 5.56 NATO
10.5" 5.56 NATO
11.5" 5.56 NATO
13.9" 5.56 NATO
14.5" 5.56 NATO
16" 5.56 NATO
18" 5.56 NATO
.223 WYLDE
16" .223 WYLDE
18" .223 WYLDE
20" .223 WYLDE
300 BLACKOUT
6" 300 AAC BLACKOUT
7.5" 300 AAC BLACKOUT
8.5" 300 AAC BLACKOUT
10.5" 300 AAC BLACKOUT
16" 300 AAC BLACKOUT
AR-15 BUILD KITS
AR-15 UPPER PARTS
AR-15 UPPER RECEIVERS
AR-15 BARRELS
5.56 NATO BARRELS
.223 WYLDE BARRELS
300 BLACKOUT BARRELS
AR-15 BCG's / CHARGING HANDLES
HANDGUARDS
ALL HANDGUARDS
ACCESSORIES
DROP IN
4"-5" PISTOL
7" CARBINE
9"-10" SPECTER
11"-13" RIFLE
15"+ EXT RIFLE
AR-15 GAS BLOCKS / TUBES
AR-15 MUZZLE DEVICES
1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
THREAD CONVERTERS
AR-15 LOWER PARTS
LOWER PARTS AND KITS
GRIPS
STOCKS - PISTOL BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
AR-10
AR-10 BARRELED UPPERS
AR-10 UPPER PARTS
AR-10 UPPER RECEIVERS
AR-10 BARRELS
AR-10 BCG's / CHARGING HANDLES
AR-10 HANDGUARDS
AR-10 GAS BLOCK / GAS TUBES
AR-10 MUZZLE DEVICES
AR-10 LOWER PARTS
AR-10 LOWER PARTS KITS
AR-10 TRIGGERS
AR-10 STOCKS - KITS
AR-10 GRIPS
AR-10 80% LOWERS
GLOCK
GLOCK SLIDE PARTS
GLOCK BARRELS
G26 BARRELS
G19 BARRELS
G17 BARRELS
G23 BARRELS
G22 BARRELS
GLOCK SLIDES & PARTS
G43 SLIDES & PARTS
G26 SLIDES & PARTS
G19 SLIDES & PARTS
G17 SLIDES & PARTS
GLOCK FRAME PARTS
GLOCK 43 FRAME PARTS
GLOCK 26/27 FRAME PARTS
GLOCK 19/23 FRAME PARTS
GLOCK 17/22 FRAME PARTS
GLOCK 20/21 FRAME PARTS
76% - 80% FRAMES & JIGS
P80 JIGS
G43 SINGLE STACK
G26/27 SUB-COMPACT
G19/23/32 COMPACT
G17/22 FULL SIZE
G20/21 SF XL SIZE
SIG P320
SIG P320 SLIDE PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
Return to 7.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE SQUADRON 9.87" LIGHTWEIGHT QUAD RAIL
Sort By::
Most Helpful
Newest
Rating: High to Low
Rating: Low to High
Page
of 1
0 of 0 people found the following review helpful:
Awesome product!!
February 8, 2024
: Jason W. from AL United States
Let’s just say this product is awesome! First off shipping was fast. I ordered may upper I think Tuesday and it came in Friday. Secondly their customer service is second to none. I had some address issues and called MAS defense and they were friendly and really awesome to talk to and fixed my order with no issues. Lastly everything about my upper is nice and married tightly with my lower. All came pre-assembled and ready to-go if that might be a question. Overall Awesome product and company. Will order again from them.
Was this review helpful to you?
0 of 0 people found the following review helpful:
7.5 inch 556 upper
January 6, 2024
: Shawn Lachance from Middleburg, FL United States
This is 5th upper I have purchased from Mas Defense ( 3 - 556's & 2 - 300BO's). All of them are superb quality fit & finish. I purchased this upper for a SBR build. I have attached a DA Sierra 5, still loud.. lol. Great little truck gun. I have recommend MD to friends & I know one of them have purchased 2 of their 9mm uppers. My buddy was pleasantly surprised for quality & value for the money. My next upper is going to a 13.7" FDE upper & 12 FDE sQUADRon handguard.
Was this review helpful to you?
0 of 0 people found the following review helpful:
Excellent
January 29, 2021
: Derek from United States
Happy customer.
Was this review helpful to you?
0 of 0 people found the following review helpful:
Very nice upper!!
November 20, 2020
: 135 from MO United States
The attention to detail and quality is second to none. This complete upper looks amazing, I am an operator, and this is a very nice complete upper that looks great on an SBR or as an AR pistol.
Very happy,
135
Was this review helpful to you?
0 of 0 people found the following review helpful:
beautiful work
June 27, 2020
: Jeremy Miller from Ridge, NY United States
Upon receiving my upper from MAS defense I was very pleased to see the quality that was put into the craftsmanship of my upper receiver. Shipping and handling was fast and tracking was made available immediately. I would love to buy another upper from MAS defense soon as their stock is replenished
Was this review helpful to you?
0 of 0 people found the following review helpful:
Outstanding
May 28, 2020
: Marcus Atchison from Upper Marlboro, MD United States
Outstanding finish and quality...will definitely be buying more products!
Was this review helpful to you?
0 of 0 people found the following review helpful:
April 29, 2020
: Melodie Yarbrough from Midland, TX United States
Was this review helpful to you?
0 of 0 people found the following review helpful:
Well Done
April 22, 2020
: Michael Wood from Senoia, GA United States
Barrel and rail better than expected. Love the look and design. Chose this over many other options and was by far the best decision
Was this review helpful to you?
0 of 0 people found the following review helpful:
Purchase review
April 13, 2020
: Alexander Hycner from Ithaca, NY United States
Second upper I’ve purchased through MAS defense and I’m beyond impressed with the Quality, the price and the ease of shopping and superior customer service
Will continue shopping with MAS defense
Was this review helpful to you?
Get on the list
& get exclusive deals
Enter your email address for special offers from MAS Defense LLC
© Copyright 2013 -
MAS Defense LLC. All Rights Reserved.