Home > Primary Weapons >

PWS MK109 MOD1-M Upper 9.75" 300BLK
PWS MK109 MOD1-M Upper 9.75" 300BLK
Alternative Images:

MSRP: $1,049.00
Our Price: $899.00

Quantity in stock:1

Product Code: 18-M109UB0B

The Primary Weapons 300 Blackout MK109 MOD1-M upper features no forward assist, 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

Average Customer Review: 5 of 5 Total Reviews: 2  Write a review.

  0 of 0 people found the following review helpful:
Fast & Responsive Service! April 17, 2018
Reviewer: SimonsGotAGun from O'Fallon, MO  
Ordered a PWS upper and lower on Thursday evening, and had them the following Monday. I got an email from Mike within minutes after placing my order asking me about shipping. Would definitely buy here again.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
Best in class product & service April 4, 2018
Reviewer: Hootloops from Pflugerville, TX  
I'm very satisfied with the PWS MK109 MOD1-M 9.75 300BLK upper purchased from Fortress Tactical. The customer service from Mike Lane was excellent, and he offers the best pricing on PWS gear or will match a competitor's price. I placed an order on a Thursday night, and it was at my door by noon on Monday! I'll be back soon for a MOD2 lower, and maybe some Bootleg gear for my 5.56 build. Thanks again Mike.

Was this review helpful to you?