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

Available Quantity:1

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Product Code: M109UB01-1F


Note*:
Muzzle device loose

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Description
 
Special note: muzzle device has not been torqued, and ships loose on this upper.

The MOD1 MK109 Primary Weapons upper in caliber 300 Blackout features MLOK handguard, FRC suppressor-ready compensator, 9.75" barrel, PWS long-stroke piston system, adjustable gas block & Radian 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 M109UB01-1F
  • Fits milspec AR15 lowers
  • Caliber 300 Blackout
  • 3lb 8oz in weight
  • 9.75 inch 41V50 FNC LIFE HD barrel
  • 1:8 twist threaded 5/8X24
  • FRC 2-port suppressor-ready compensator
  • Compatible with Rearden suppressor mounts
  • 8.9 inch MLOK handguard
  • Pistol-length long-stroke piston system
  • 3-position adjustable gas block
  • Radian Raptor LT charging handle
  • Limited lifetime warranty
Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 23  Write a review.

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PWS MK109 MOD2 Upper 300BLK


  1 of 1 people found the following review helpful:
 
5 of 5 Great Service January 31, 2023
Reviewer: Steven from Rock Hill, SC  
Received item within 3 days of purchase, and in perfect condition. Would 100% buy from again!

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  0 of 0 people found the following review helpful:
 
5 of 5 Fortress Tactical October 21, 2022
Reviewer: Derrick Smith from Coraopolis, PA  
I would leave a 10-star rating if I could. Mike at Fortress Tactical was absolutely amazing. I highly recommend Fortress Tactical to everyone. PWS is now my go-to platform, and has exceeded my expectations. Both companies deserve recognition as being top-notch with unbelievable customer service!

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  0 of 0 people found the following review helpful:
 
5 of 5 Fortress Tactical is my goto supplier October 19, 2022
Reviewer: Derek from Virginia  
Mike at Fortress Tactical understands that PWS customers seek the highest quality, and Mike's service delivers that.  He is quick to communicate with you and provides great effort into getting the product in your hands when few can.

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  0 of 0 people found the following review helpful:
 
5 of 5 PWS MK109 MOD2 300BLK October 17, 2022
Reviewer: R. Rogers from Mansfield, TX  
Always a pleasure doing business with Mike @ Fortress Tactical, LLC. Mike goes above and beyond to ensure that all customers are given the best experience possible. Mike communicates better than anyone I’ve ever dealt with in the firearms industry. No gimmicks whatsoever. Just solid customer service, and an excellent product selection. I plan on making additional purchases from Fortress Tactical, LLC. I give ‘em FIVE STARS!!!

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  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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