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MAS DEFENSE
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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
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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
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AR-10 LOWER PARTS KITS
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AR-10 GRIPS
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GLOCK SLIDE PARTS
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G19 SLIDES & PARTS
G17 SLIDES & PARTS
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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
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SIG P320 FRAME PARTS
80% INSERTS & JIGS
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***SALES***
HOLIDAY SALE
BLEM SALE
MAS DEFENSE
BALLISTIC ADVANTAGE
FAXON FIREARMS
G-FLEX TRIGGERS
MAGPUL
MISSION FIRST TACTICAL
NORSSO GLOCK SLIDES
POLYMER80
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 16" 5.56 / .223 AR-15 BARRELED UPPER - MAS DEFENSE RIDGELINE 15" M-LOK RAIL
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0 of 0 people found the following review helpful:
Super satisfied
November 17, 2023
: Stephen Sayyae from Leonard , MI United States
Product is above and beyond service is on point customer care is #1 and response time was better then expected! Will for sure purchase another product and most definitely recommend!
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0 of 0 people found the following review helpful:
Beautiful! Pristine! A+++++
December 8, 2022
: James Levy from Fort Mill, SC United States
I loved the look online and was blown away when it arrived within a week! Customer service was exceptional! Ease of ordering was unbelievable. Quality is out of this world. This is my 2nd upper and will not be the last. This is the only shop I will ever purchase an upper or parts from. Thank you MAS Defense! Merry Christmas!! Now that’s an UPPA!!!
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0 of 0 people found the following review helpful:
Review for the ar-15 upper
November 15, 2022
: Alex Paul from Mint Hill, NC United States
Upper looks great and have already tested out the upper last weekend. Everything seems to work great, would recommend purchasing.
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0 of 0 people found the following review helpful:
Great Upper
January 17, 2022
: Adam O from Western Colorado
This is another upper I have purchased from MAS (repeat customer for a reason!) and it is excellent. The fit and finish is great on this piece. It has a very standard matte black finish, and matches well to all hardware from other manufacturers. No blemishes or evidence of cheap manufacturing.
Order fulfillment was smooth and shipping was quick. MAS is great to do business with and this is another fine product from them. I haven't shot it yet but if it performs like our others, it will be MOA to sub-MOA without even trying.
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0 of 0 people found the following review helpful:
Great Transaction
July 20, 2021
: from ,
Great Transaction, Works as it should and fast shipping.
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0 of 0 people found the following review helpful:
A Stunning Upper!
April 15, 2021
: Evan Burgan from Rathdrum, ID United States
Ordered a 5.56 complete upper and it came super quick! Packaging was great, could have been a slightly bigger box. It looks amazing! The only issue was because of me. I thought i ordered a polished muzzle break but on the order form it clearly say matte. I still love it!
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0 of 0 people found the following review helpful:
Fantastic upper
April 8, 2021
: Travis Pangle from INDIAN LAND, SC United States
Very well built upper. Will definitely be buying more in the future. Fit perfectly on my PSA lower.
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0 of 0 people found the following review helpful:
Great Quality
April 6, 2021
: Dominick Costanzo from Cedar Grove, NJ United States
Received this upper less than a week after ordering. It feels like great quality and is lighter than I anticipated. It fit great on my kp-15 lower. A nice touch was they installed the charging handle I ordered for me, minor, but it shows they care. I will update this review when I have a chance to shoot with it.
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0 of 0 people found the following review helpful:
Products and Shipping
April 2, 2021
: from SHEPHERD, TX United States
Excellent product and fast shipping
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0 of 0 people found the following review helpful:
Looks and feel great
March 29, 2021
: Justin Olson from Denver, CO United States
Upon arrival, I immediately installed this upper onto my m4e1 lower from aero.. fits well and looks great .
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