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*** 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]
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MAS Defense LLC
Contact
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*** 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 10.5" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE MIL SPEC BARREL NUT
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0 of 0 people found the following review helpful:
Underrated Company with exception quality.
February 16, 2024
: Chris A. from GA
I bought my first upper from yall in 2018 and I remember receiving it in two days. It was a 16†barrel with 12 in quad rail.
Solid rifle. I am not gentle with it at all. Yet it eats every type of round I put through it. Wish I could submit a pic
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0 of 0 people found the following review helpful:
mk18 clone?
July 22, 2022
: chris from TN United States
pefect upper, able to add nb parts and ready for my handguards. Great out of the box.
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0 of 0 people found the following review helpful:
5.56 10" Upper
April 8, 2022
: Bob from OH - United States
Great folks at MAS defense. I bought a 10.5" upper and once again super happy. Easy to work with and quality product!
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0 of 0 people found the following review helpful:
Great value
January 25, 2022
: Donald Nywening from Vancouver, WA United States
Nice upper. Well assembled, everything looks great.
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0 of 0 people found the following review helpful:
Perfect
April 23, 2021
: IMRAN ALASSAF from New Lenox, IL United States
I ordered a barrel upper and it was better than I wanted! Price is great and came quick
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0 of 0 people found the following review helpful:
10.5 UPPER
April 10, 2021
: RICHARD from MICHIGAN
This is my second MAS Defense upper, the first was for a 300 BLK pistol build. It has been flawless and I am sure this upper will be the same.
You guys have some great stuff and great prices.
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0 of 0 people found the following review helpful:
Zero Complaints
March 2, 2021
: Charles from NC United States
Everything arrived as advertised. Shot a few rounds today, no issues. Looks great and fits great with my Spikes Lower, no rattle.
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1 of 1 people found the following review helpful:
10.5 barreled upper
January 21, 2021
: from Olympia, WA United States
2nd upper from Mas Defense. Love their products, haven’t finished the 2nd build yet but the first upper from them was amazing that I had to get another. And you can’t beat their prices. Fast shipping as always.
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0 of 0 people found the following review helpful:
10.5 inch barreled upper
January 8, 2021
: Andrew from Sartell, MN United States
Complete upper I ordered arrived fast and was great quality.
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0 of 0 people found the following review helpful:
Second MAS upper
November 30, 2020
: CS from TX United States
This is my second MAS upper, the first one was perfectly built and runs flawlessly. This one is in the completion phase but the upper is built well. For the money one cannot out do MAS. Shipping was fast, too.
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