PWS MK109 MOD1 Upper 300BLK - Fortress Tactical, LLC

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PWS MK109 MOD1 Upper 300BLK

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MSRP: $1,209.00
Use code "150" for best price!

Available Quantity:4

Product Code: MK1-M1U-300BLK-9

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Description

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

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

Average Customer Review: Average Customer Review: 5 of 5

5 of 5 Total Reviews: 25 Write a review.

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0 of 0 people found the following review helpful:

PWS/MK109 Mod1 and MK111 Mod1	January 27, 2026
Reviewer: JC Dodge from Greencastle, PA

Not only did I get both uppers at great prices, but the delivery time was fast to say the least. Nothing but good things to say about the multiple interactions with FortTac Staff.

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0 of 0 people found the following review helpful:

Excellent upper	December 7, 2024
Reviewer: E. Carroll from Willow, AK

Great upper! Excellent communication from seller. This is the second upper I have ordered from this seller. Shipping times took longer than expected. But, that is more to do with the postal system. Highly recommended.

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1 of 1 people found the following review helpful:

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:

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:

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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