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PWS MK109 MOD1 Upper 300BLK KB
PWS MK109 MOD1 Upper 300BLK KB
 
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MSRP: $1,199.00

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Product Code: MK1-M1U-300BLK-9-KB
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Description
 
This limited-run Kodiak Brown anodized 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
  • Anodized Kodiak Brown
  • Fits milspec AR15 lowers
  • Caliber 300 Blackout
  • 3lb 8oz in weight
  • 9.75 inch 41V50 FNC LIFE HD barrel
  • 1:6 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

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PWS MK109 MOD1 Upper 300BLK
MSRP: $1,199.00

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PWS MK109 MOD1 Upper 300BLK

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1  Write a review.

  0 of 0 people found the following review helpful:
 
5 of 5 MK109 Perfection February 3, 2026
Reviewer: Scott from Boise, ID  
Mike got this beauty shipped out to me in record time, and it arrived as expected in perfect condition. PWS makes great stuff!

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