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PWS MK107 MOD2 Upper 762X39
PWS MK107 MOD2 Upper 7.75" 762X39
 
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MSRP: $1,399.00

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Product Code: 2M107UF01-1F
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Description
 
The MK107 762X39 MOD2 Primary Weapons 7.75 inch complete upper receiver features PWS long-stroke piston system, no forward assist, MLOK handguard with integrated Picatinny sections, CQB compensator, adjustable gas block and Radian Raptor charging handle.

Also know as the "Diablo", this is the shortest PWS upper available. For your SBR or pistol build, the MK107 is the best option for a compact weapons platform. As is normal with short-barrel uppers, concussion can be an issue. The factory-mounted close-quarters compensator helps mitigate this by sending the blast forward. Fortress Tactical recommends C-Products Defense 762X39 AR15 magazines for use with this upper.
Technical Specs
  • Fits milspec AR15 lowers
  • 3lb 9oz weight
  • Lightweight upper receiver
  • No forward assist
  • PWS CQB compensator
  • 7.75 inch 41V50 FNC LIFE HD barrel
  • 1:10 twist threaded 5/8X24
  • 7 inch PicLok handguard
  • Integrated MLOK w/Picatinny sections
  • 3-position adjustable gas block
  • Pistol-length long-stroke piston system
  • FNC LIFE HD bolt carrier
  • Radian Raptor charging handle
  • Limited lifetime warranty

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 31  Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 PWS MK107 Mod2 7.62x39 Upper June 15, 2024
Reviewer: Chuck from OH, USA  
After a frustrating experience with Optics Planet, Fortress Tactical got my order correct. The item was at my home in no time flat, exceeding expectations! If PWS is what you want, order from Fortress Tactical! Thanks Mike!

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  0 of 0 people found the following review helpful:
 
5 of 5 Goes above and beyond October 21, 2022
Reviewer: Sambath Ou from Junction City, OR  
I pre-ordered a PWS Mk107 Mod-2M 7.62x39 upper from Mike in late September, with an expected ship date somewhere in November/December. Fortress received a few early along with a few blem units. Mike immediately emailed those of us that pre-ordered these units giving us the option to save some money with a blem unit, or continue our order with an unblemished one. Great communication and speedy shipping. I have purchased one other PWS product from Mike. Very attentive to my needs by squaring away a mistake I made on my end. Will be purchasing from Fortress again when the need arises.

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  0 of 0 people found the following review helpful:
 
5 of 5 Piston upper May 19, 2022
Reviewer: Austin from Hastings, MN  
Love the upper, and Fortress Tactical was quick and efficient at shipping product!

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  0 of 0 people found the following review helpful:
 
5 of 5 Great all the time May 8, 2022
Reviewer: TB from Newnan, GA  
Always good prices. Always great shipping & service!

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  0 of 0 people found the following review helpful:
 
5 of 5 Outstanding March 28, 2022
Reviewer: Nik from RI, USA  
Great service, fast shipping. I’m in love with PWS now.

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