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***MAS DEFENSE***
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7.5" - 8" 5.56 NATO
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14.5" 5.56 NATO
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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
9MM
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
AR-15 BUILD KITS
AR-15 UPPER PARTS
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5.56 NATO BARRELS
.223 WYLDE BARRELS
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15"+ EXT RIFLE
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1/2 x 28 TPI
1/2 x 36 TPI
5/8 x 24 TPI
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80% LOWERS
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AR-9 LOWER PARTS
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80% FRAMES & JIGS
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***SALES & SPECIALS***
BLEM SALE
MAS DEFENSE
BALLISTIC ADVANTAGE
FAXON FIREARMS
FRANKLIN ARMORY
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
ROOK TACTICAL
SB TACTICAL
SHOCKWAVE - KAK
SYLVAN ARMS
UTG / LEAPERS
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
9MM
5.25" 9MM
8.3" 9MM
11" 9MM
16" 9MM
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
9MM BARRELS
AR-15 BCG's / CHARGING HANDLES
BOLT CARRIER GROUPS
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
TRIGGERS
GRIPS
STOCKS - PISTOL BRACES
PISTOLS - ARM BRACES
RIFLES - STOCKS
80% LOWERS
POLYMER 80% LOWERS
FORGED 80% LOWERS
BILLET 80% LOWERS
AR-9 LOWER PARTS
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
G34 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
80% FRAMES & 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 UPPER PARTS
SIG P320 FRAME PARTS
80% INSERTS & JIGS
SIGHTS
SIGHTS
OPTICS
TOOLS
TOOLS
KNIVES
SWAG
Return to 16" 5.56 / .223 BARRELED UPPER - TROY ALPHA RAIL 13"
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0 of 0 people found the following review helpful:
Great!
March 30, 2020
: Corey Morris from Plano, TX United States
Exactly what I ordered, shipped fast!
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0 of 0 people found the following review helpful:
The Right Stuff
January 29, 2017
: Ron A
This upper came in perfect shape , was well packed and very professionally made ! It shot 50 rounds out sighting in Saturd flawlessly ! The gun will shoot as good as I can any d of the week ! The people at MAS are top notch from placing your order to any questions I had . Other companies ; not so much ! Thank again MAS ! I'll gladly use you again ! A special thank you to Mario for being awesome about any details I needed to know ! Cheers !
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0 of 0 people found the following review helpful:
Barreled Upper
December 30, 2016
: ricardo s
Ok, this product exceeds all expectations. I dont know why other sites are even in business. Mas defense meets all my AR needs and has great prices. This is one NICE upper! GREAT service, great company!
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0 of 0 people found the following review helpful:
Can't wait to shoot it
April 11, 2016
: Mike K
I ordered this complete upper with a mid length stainless steel barrel, optional competition brake and standard lower. It took a total of 1 week and 1 d to arrive in CA. Really pleased with the quick service and attention to detail. I just finished my lower and assembled my rifle, can't wait to shoot it. I'll report back once I get it to the range. My neighbor is in the process of building a similar rifle and MAS Defense is a strong contender for his business based on how mine looks.Thanks for the quick, quality workmanship.MIke
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0 of 0 people found the following review helpful:
PPER - TROY 16" 5.56 BARRELED UPPER ALPHA 13
March 30, 2016
: Tyler A
Shipping was very fast and my upper was packaged correctly. Great quality and assembled correctly. Only company that had a fair price including a troy rail.
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0 of 0 people found the following review helpful:
16" 5.56 / .223 BARRELED UPPER - TROY ALPHA 13
July 18, 2015
: Bob P
Awesome upper!!!! This is my 3rd Try Alpha Battle Rail from MAS Defense. They run great (especially on full auto) and look and feel just as awesome! Shot a hog in Texas with the 10.5" barrel with the 9" Try battle rail on my M16A1. A quick 28 round burst at 125 yards and hit the hog 4 times!!!! Accurate, full auto rated, and works like it should! Thanks MAS defense!
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0 of 0 people found the following review helpful:
16" upper with 13" Troy Alpha ROCKS!
February 25, 2015
: Anthony H
I was so excited to receive my upper from MAS. Don't know if it was because its my first build or the fact the shipping was delayed 4 ds by USPS due to weather but wow is this thing awesome.Looking it over the fit and finish is top notch. the rail is solid and everything was just perfect. cant wait to buy again from MAS. High quality and very good upper. Cant wait to go show it off to my buddies!
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0 of 0 people found the following review helpful:
Awesome Service
March 30, 2014
: Jeffrey C
Awesome service as usual. Parts and build quality are second to none. The offer more options than anybody that I could find. This is my second upper purchase from MAS Defense. I am very happy with both.
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