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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

1–55 / 55
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(3)
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Super Vel Ammunition 300 Blackout 150 grain Full Metal Jacket Brass Cased Rifle Ammunition
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Remington UMC Rifle .223 45 Grain Jacketed Hollow Point Centerfire Rifle Ammunition
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(1)
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(4)
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Magtech 300 Blackout 123 Grain Full Metal Jacket Brass Cased Rifle Ammo, 50 Rounds, 300BLKB
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(1)
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SinterFire GreenLine .223 Remington 55 Frangible Brass Rifle Ammo, 50 Rounds, SF22355GL-C
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Federal Premium Power-Shok Copper .300 AAC Blackout 120 Grain Copper Hollow Point Centerfire Rifle Ammo, 20 Rounds, 300BLK120LFA
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(3)
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$32.99
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Federal Premium 223 Rem 77 Grain Centerstrike Centerfire Rifle Ammo, 20 Rounds, GM223OTM3
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$30.19
$1.51/Round
HSM 300BLK4N Match 300 Blackout 220 Gr Hollow Point Boat Tail HPBT
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$35.39
$1.77/Round
Barnes Precision Match .300 AAC Blackout 220 grain Jacketed Hollow Point Brass Cased Rifle Ammo, 20 Rounds, 32134
Barnes Precision Match .300 AAC Blackout 220 grain Jacketed Hollow Point Brass Cased Rifle Ammo, 20 Rounds, 32134
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$39.79
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(2)
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(2)
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$33.89
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Final Sale
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(44)
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PPU 223 Remington,5.56 NATO 0 grain Brass Cased Blank Ammo 20 Rounds, PPB556A1
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Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
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(10)
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(5)
List: $50.49 (Save 40%)
$30.39
$1.52/Round
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Freedom Munitions HUSH Subsonic .300 Blackout 220 Grain HPBT Brass Rifle Ammo, 50 Rounds, FMH300H220N50
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(1)
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$55.49
$1.11/Round
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
(1)
As Low As (Save Up to $29.50)
$42.69
$1.87 - $2.13/Round
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Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Centerfire Rifle Ammunition
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(1)
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$1.74/Round
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Magtech 300 Blackout 200 Grain Full Metal Jacket Subsonic Brass Cased Rifle Ammo, 50 Rounds, 300BLKSUBA
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(1)
List: $50.46 (Save 17%)
$42.09
$0.84/Round
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
Norma Range and Training Norma 300 Blackout 147 Grain Brass Cased Rifle Ammunition
As Low As (Save Up to $2.80)
$20.59
$1.03 - $1.18/Round
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Hornady Critical Defense .223 Remington 55 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80270
Hornady Critical Defense .223 Remington 55 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80270
(10)
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$32.19
$1.61/Round
Winchester FMJ Winchester LC .223 Remington 55 gr Rifle Brass Ammunition
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As Low As (Save Up to 45%)
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Ammo Boxes

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Frankford Arsenal Reloading Tools Hinge-Top Ammo Box
Frankford Arsenal Reloading Tools Hinge-Top Ammo Box
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MTM 100 Round Blue Small Rifle 17/223 Caliber Ammo Box, RS10024
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$6.99
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MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
MTM Ammo Can Tray for Metal Cans 30 Cal., Dark Earth, MAC30
(12)
List: $17.89 (Save 22%)
$13.99
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
RCBS Impact Resistant Ammo Box .223 Rem/5.56 NATO 86E0BB5F, RC86910
RCBS Impact Resistant Ammo Box .223 Rem/5.56 NATO 86E0BB5F, RC86910
List: $7.71
$7.49
MTM J-20 Slip-Top Boxes .17/.223/.222 Magnum, Clear Green, J-20-XS-16
MTM J-20 Slip-Top Boxes .17/.223/.222 Magnum, Clear Green, J-20-XS-16
(1)
List: $3.53
$3.49
Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
Berrys 29682 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Smoke Lid W/Black Bottom
(1)
List: $5.39 (Save 41%)
$3.19
Nanuk 908 Ammo Case, 12.5in, Black/White, Small, 908S-000BK-PA0-AMM01
Nanuk 908 Ammo Case, 12.5in, Black/White, Small, 908S-000BK-PA0-AMM01
List: $99.99 (Save 20%)
$79.95
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
Berrys 44661 405 Ammo Box 223 Rem,5.56x45mm NATO 50rd Blue Lid W/Black Bottom
List: $6.49 (Save 51%)
$3.19
BERRYS 30 CAL PLASTIC AMMO CAN, BLACK, 12887
BERRYS 30 CAL PLASTIC AMMO CAN, BLACK, 12887
List: $12.00 (Save 46%)
$6.49
Best Rated
MTM 223 Ammo Can 400 Round w/ 4 each RS-100s, Dark Earth ACC223
MTM 223 Ammo Can 400 Round w/ 4 each RS-100s, Dark Earth ACC223
(8)
List: $41.88 (Save $3.39)
$38.49
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
MTM Ammo Rack w 4 RS-50-24 Ammo boxes, Dark Earth/Clear Blue, ARRS
(2)
List: $37.97 (Save $3.18)
$34.79
MTM Ammo Box 100 Round Flip-Top 223 204 Ruger 6x47, smk/clear, small RS-100-41
MTM Ammo Box 100 Round Flip-Top 223 204 Ruger 6x47, smk/clear, small RS-100-41
(2)
List: $10.94 (Save 36%)
$6.99
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
Berrys 11664 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Smoke Lid W/Black Bottom
List: $6.99 (Save 21%)
$5.49
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
Berrys 86410 005 Ammo Box 223 Rem,5.56x45mm NATO 100rd Blue Lid W/Black Bottom
List: $6.99 (Save 21%)
$5.49
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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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