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PWS MK109 MOD1-M Upper 300BLK
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PWS MK109 MOD1-M Upper 9.75" 300BLK
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MSRP: $1,049.00
Our Price: $899.00

Quantity in stock:2

Product Code: 18-M109UB0B
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Description
 
The Primary Weapons 300 Blackout MK109 MOD1-M upper features MLOK handguard, PWS Triad compensator, 416R barrel, long-stroke piston system, FNC LIFE HD bolt carrier, polished bolt & 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. Current-model 300BLK PWS platforms do not utilize an adjustable gas block.
Technical Specs
  • 3lb 10oz weight
  • 19.2" overall length
  • PWS Triad compensator
  • 9.75" 416R FNC LIFE HD barrel
  • 1:8 twist threaded 5/8X24
  • 8.9" MLOK handguard
  • Pistol-length long-stroke piston system
  • FNC LIFE HD bolt carrier & polished bolt
  • Radian Raptor LT charging handle
  • Limited lifetime warranty

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Average Customer Review: 5 of 5 Total Reviews: 9  Write a review.

  0 of 0 people found the following review helpful:
 
Great Product & Awesome Service March 31, 2019
Reviewer: Brandon from Houston, TX  
After drooling over this upper for months at another website I finally took the plunge. When it was supposed to have arrived, they hadn't touched it. A full two weeks went by with no word. I called up Mike and put the order through. He shipped it an hour later. Two days later, I had the upper in hand. After spending all that time waiting on the other company, I'd feel like a fool going anywhere else for my PWS gear. The upper itself is smooth and runs so clean. I'm thinking about switching to piston for everything.

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  0 of 0 people found the following review helpful:
 
Great purchase and shipment March 18, 2019
Reviewer: Piston guy from MD, USA  
Great website and wonderful shipping. Will definitely do business with Fortress Tactical again.

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  0 of 0 people found the following review helpful:
 
Mk109 Upper February 19, 2019
Reviewer: Jose from Saint Cloud, FL  
It was pleasure buying from Fortress Tactical! They are very professional and fast shipping. All my question were answered, and in a timely manner. I will definitely be buying from them again! Thank you. The upper works flawlessly when switching from my pistol lower to my carbine.

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  0 of 0 people found the following review helpful:
 
PWS Upper February 17, 2019
Reviewer: Hank from Pasadena, MD  
I love the PWS upper! The quality and attention to detail is amazing. Well worth the price and the long stroke piston system is very reliable. I originally purchased this from another site and waited 2 weeks - only to call and find out it was backordered with no ETA. Fortress Tactical had it in stock and it shipped out the next day. I was told it would arrive by FRIDAY and it was here by THURSDAY! I requested that it be sent without requiring a signature and they left it at my door as requested. This place is going to get all my business for PWS.

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  0 of 0 people found the following review helpful:
 
Great company July 7, 2018
Reviewer: Charles from Indialantic, FL  
Always fast shipping and great customer service.

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