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Primary Weapons Systems MK1 MOD 2 Upper Receiver

Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
Primary Weapon System 2M114UA0B MK116 Upper MOD 2 .223 Wylde 16
Primary Weapon System 2M118UA0B MK118 Upper MOD 2 .223 Wylde 18
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
1 of 16 images
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
2 of 16 images
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
Primary Weapon System 2M114UA0B MK116 Upper MOD 2 .223 Wylde 16
3 of 16 images
Primary Weapon System 2M114UA0B MK116 Upper MOD 2 .223 Wylde 16
Primary Weapon System 2M118UA0B MK118 Upper MOD 2 .223 Wylde 18
4 of 16 images
Primary Weapon System 2M118UA0B MK118 Upper MOD 2 .223 Wylde 18
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
5 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
6 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
7 of 16 images
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
8 of 16 images
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
9 of 16 images
Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
10 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
11 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
12 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
13 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
14 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
15 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B
16 of 16 images
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B

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Questions & Answers
Is this Mk111 Mod2 with PicLok technology rail system??? Featured Answer

I just confirmed with the OP; yes it is MK111 MOD2-M (PicLok). The newest model. Awesome.

by Doc, Verified Owner, June 20, 2019
On the 11.85" .223 Wylde upper, is the compensator pinned & welded or can it be changed out? Expert Answer

It is not pinned and welded, it can be removed.

by Jonathan D., Gear Expert, December 9, 2019
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Awesomeness by Chris, April 19, 2018
Bought this upper December 2017, wanted to put at least a thousand rounds through it before reviwing. Only thing to say is that it is awesome!!! After first seeing the complete rifle on Sage Dynamics utube channel, I knew right then I needed to have ...
Read More...
5/6 found this helpful
Helpful Positive Review AMAZING UPPER! by Scott, February 27, 2019
Yes the caps lock was necessary in the title. This upper is an amazing piece of hardware and well worth the price for what it delivers. I have about 6000 rounds thru it already and not a single malfunction, maintains sub moa groups even when heated u...
Read More...
4/4 found this helpful
Read All 2 Reviews
Caliber: .223 Remington , .223 Wylde Barrel Length: 7.75 inColor: Black Condition: New Fabric/Material: 7075-T6 Aluminum Additional Features: 7 in KeyMod Rail , Triad 556 Included Accessories: Adjustment Tool / Literature

Code: 2D5-UFH-MK1MOD2-2M107UA0B

MPN: 2M107UA0B

Product No Longer Available

Product Info for Primary Weapons Systems MK1 MOD 2 Upper Receiver

The Primary Weapons Systems (PWS) MK1 MOD2 Uppers are forged, allowing for a much stronger and lighter product than a billet part. The MOD 2 handguard is equipped with the PicMod Technology. This allows you to mount any MLOK attachment anywhere on your rail while being able to mount most Picatinny accessories directly to the rail in the areas where the PicMod feature is present. This gives you the most mounting options without having to use MLOK mounted Picatinny rail sections, adding unnecessary width and weight to your rifle. The PWS MOD 2 Upper is equipped with an adjustable gas block that has three easy to use settings. Everything about the MOD 2 has been designed to be an incredibly accurate fit and finish. Available in 3 different barrel lengths and two calibers.image

Features of Primary Weapons Systems MK1 MOD 2 Upper Receiver:

  • SUPERIOR FIT
  • ENHANCED TRIGGER
  • NEW BUFFER TUBE
  • AMBIDEXTROUS
  • FURNITURE & MAGAZINE

Package Contents:

  • Primary Weapons Systems MK1 MOD 2 Upper Receiver

Ammunition

1–57 / 57
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SinterFire Reduced Hazard .300 AAC Blackout 110 Grain Frangible Brass Cased Pistol Ammo, 50 Rounds, 855040006815
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Armscor Precision Inc USA .300 AAC Blackout 147 Grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, FAC300AAC-1N-20RD
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List: $14.99 (Save 30%)
$10.49
$0.52/Round
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Hornady Black .223 Remington 62 grain Full Metal Jacket (FMJ) Brass Centerfire Rifle Ammunition
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$27.79
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$799.99
$0.80/Round
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SinterFire GreenLine .223 Remington 55 Frangible Brass Rifle Ammo, 50 Rounds, SF22355GL-C
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SIG SAUER SIG Match Grade Rifle Ammo .300 AAC Blackout 125 grain Open Tip Match Brass Cased Centerfire Rifle Ammo, 20 Rounds, E300A1-20
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Fiocchi Range Dynamics .223 Remington 45 Grain Lead Free Frangible Brass Rifle Ammo, 50 Rounds, 223FRANG
Fiocchi Range Dynamics .223 Remington 45 Grain Lead Free Frangible Brass Rifle Ammo, 50 Rounds, 223FRANG
List: $72.49 (Save 47%)
$38.49
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PPU 223 Remington,5.56 NATO 0 grain Brass Cased Blank Ammo 20 Rounds, PPB556A1
PPU 223 Remington,5.56 NATO 0 grain Brass Cased Blank Ammo 20 Rounds, PPB556A1
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$16.09
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Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
List: $53.49 (Save 18%)
$44.09
$2.20/Round
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
2 models
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
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Winchester Super Suppressed .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, SUP300BLK
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SIG SAUER Elite Hunting Solid Copper .300 AAC Blackout 120 grain Open Tip Match Brass Cased Centerfire Rifle Ammunition
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Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
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List: $59.99 (Save 13%)
$52.29
$2.61/Round
Super Vel Ammunition .223 Remington 77 grain Open Tip Match Brass Cased Rifle Ammunition
2 models
Super Vel Ammunition .223 Remington 77 grain Open Tip Match Brass Cased Rifle Ammunition
(1)
As Low As (Save Up to $4.10)
$65.89
$1.30 - $1.32/Round
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Winchester USA RIFLE .300 AAC Blackout 125 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, USA300BLK
Winchester USA RIFLE .300 AAC Blackout 125 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, USA300BLK
(17)
List: $24.99 (Save 30%)
$17.39
$0.87/Round
Sellier & Bellot .380 ACP 92 Grain Full Metal Jacket Brass Cased Pistol Ammo, 1000 Rounds, SB380AC
Sellier & Bellot .380 ACP 92 Grain Full Metal Jacket Brass Cased Pistol Ammo, 1000 Rounds, SB380AC
List: $499.99 (Save $44.30)
$455.69
$0.46/Round
Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Centerfire Rifle Ammunition
2 models
Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Centerfire Rifle Ammunition
(1)
As Low As (Save Up to $4.10)
$37.19
$1.86/Round
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Fiocchi Range Dynamics .300 Blackout 220 Grain BTHP Brass Rifle Ammo, 25 Rounds, 300BLKMB
Fiocchi Range Dynamics .300 Blackout 220 Grain BTHP Brass Rifle Ammo, 25 Rounds, 300BLKMB
(2)
List: $52.49 (Save 36%)
$33.59
$1.34/Round
Wolf Ammo Military Classic .223 Remington 55 Grain Full Metal Jacket Steel Cased Rifle Ammunition
2 models
Wolf Ammo Military Classic .223 Remington 55 Grain Full Metal Jacket Steel Cased Rifle Ammunition
As Low As (Save Up to 22%)
$12.69
$0.63/Round
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Freedom Munitions .223 Remington 62 Grain Full Metal Jacket Brass Rifle Ammunition
3 models
Freedom Munitions .223 Remington 62 Grain Full Metal Jacket Brass Rifle Ammunition
As Low As (Save Up to 26%)
$32.49
$0.64 - $0.65/Round
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Ammo Boxes

1–6 / 6
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Blazin' Deal
Frankford Arsenal Reloading Tools Hinge-Top Ammo Box
19 models
Frankford Arsenal Reloading Tools Hinge-Top Ammo Box
(10)
As Low As (Save Up to 39%)
$3.59
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MTM H50 Ammunition Box .17 Remington to .223 Remington Blue
MTM H50 Ammunition Box .17 Remington to .223 Remington Blue
(2)
List: $21.99 (Save 32%)
$14.99
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MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
2 models
MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
(11)
List: $13.76 (Save $1.17)
$12.59
RCBS Impact Resistant Ammo Box .223 Rem/5.56 NATO 86E0BB5F, RC86910
7 models
RCBS Impact Resistant Ammo Box .223 Rem/5.56 NATO 86E0BB5F, RC86910
List: $9.89 (Save 29%)
$6.99
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
2 models
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
(2)
List: $37.97 (Save $3.18)
$34.79
RCBS Ammo Box, Small Rifle, 86901
3 models
RCBS Ammo Box, Small Rifle, 86901
(2)
List: $21.89 (Save 48%)
$11.49
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Primary Weapons Systems MK1 MOD 2 Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

Primary Weapons Systems MK107 MOD 2 Upper Receiver, 7.75 in Barrel, 7 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M107UA0B , MPN: 2M107UA0B , Code: 2D5-UFH-MK1MOD2-2M107UA0B
Primary Weapons Systems MK116 MOD 2 Upper Receiver, 16.1 in Barrel, 15 in KeyMod Rail, FSC 30, Black, .300BLK, 2M116UB0B , MPN: 2M116UB0B , Code: 2D5-UFH-MK1MOD2-2M116UB0B
Primary Weapon System 2M118UA0B MK118 Upper MOD 2 .223 Wylde 18 , MPN: 2M118UA0B , Code: 2D5-UFH-MK1MOD2-2M118UA0B
Primary Weapon System 2M114UA0B MK116 Upper MOD 2 .223 Wylde 16 , MPN: 2M114UA0B , Code: 2D5-UFH-MK1MOD2-2M114UA0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 30, Black, .300BLK, 2M111UB0B , MPN: 2M111UB0B , Code: 2D5-UFH-MK1MOD2-2M111UB0B
Primary Weapons Systems MK111 MOD 2 Upper Receiver, 11.85 in Barrel, 11 in KeyMod Rail, Triad 556, Black, .223 Wylde, 2M111UA0B , MPN: 2M111UA0B , Code: 2D5-UFH-MK1MOD2-2M111UA0B
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