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PWS MK109 MOD1 Upper 300BLK
PWS MK109 MOD1 Upper 300BLK
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MSRP: $1,099.00
Our Price: $1,029.00

Available Quantity:3

Product Code: 18-M109UB0B
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Description
 
The MOD1 MK109 Primary Weapons upper in caliber 300 Blackout features MLOK handguard, Triad compensator, 41V50 FNC LIFE HD barrel, PWS long-stroke piston system, adjustable gas block & Radian Raptor LT charging handle.

PWS advises the use of supersonic 110 to 130 grain ammo on this platform. Running ammunition heavier than 130 grain can adversely affect cycling unless a suppressor is utilized.
Technical Specs
  • Factory model 18-M109UB0B
  • 3lb 10oz weight @ 19.2 inches OAL
  • PWS Triad compensator
  • 9.75 inch 41V50 FNC LIFE HD barrel
  • 1:8 twist threaded 5/8X24
  • 8.9 inch MLOK handguard
  • Pistol-length long-stroke piston system
  • 3-position adjustable gas block
  • FNC LIFE HD bolt carrier
  • Radian Raptor LT charging handle
  • Limited lifetime warranty

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 19  Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 Great upper, quick shipping August 19, 2022
Reviewer: Mike from Colorado Springs, CO  
Order was shipped in no time, had time to take it out to the range last week. Shoots well - just playing around with buffers and springs for the time being. Sits very snug on an Aero lower.

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent Experience August 18, 2022
Reviewer: Scott Buchholtz from West Lake Hills, TX  
My 300 Blackout purchase experience from Fortress could not have gone smoother. I received an email when it was in stock, and ordered it. Was off to the range a week later. Thank you Mike and the team at Fortress!

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  0 of 0 people found the following review helpful:
 
5 of 5 Aces! January 26, 2022
Reviewer: Gerald Parker from Las Vegas, NV  
About $100 higher than Optics Planet, but I prefer to support small businesses. Good health and prosperity!

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  0 of 0 people found the following review helpful:
 
5 of 5 300BLK January 1, 2022
Reviewer: Gregory Adams from Seattle, WA  
My addition to the PWS fam arrived a day early!!!! Now I need to add a 308 to the tribe. As always, everything is always good with Fortress!!!!

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  0 of 0 people found the following review helpful:
 
5 of 5 Mk109 300BLK December 24, 2021
Reviewer: Texan Horns from Manchaca, TX  
Perfect upper with 3 gas adjustment (yes, it has 3 gas adjustments and it's 300 blackout). Shipped fast. Customer service exceptional as always. I buy all my PWS uppers here. Highly recommend!

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