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Questions & Answers
Can I still use aftermarket guide rod? Expert Answer

Yes. However, The Strike Industries G3 Mass Driver Barrel Compensator was designed and tested to work together as the kit. So there is no guarantee your pistol will function properly.

by Ethan, Gear Expert, January 19, 2022
Does Strike Industries make one to fit a Gen 3 Glock 19?

Answering my own question here courtesy of Strike Industries. Yes they do, I have one on mine now.

by Richard Roderick, Verified Owner, September 4, 2021
Customer Reviews
Helpful Positive Review Great non threaded comp by Specter7, Verified Owner, September 17, 2023
Works as it should. Reduced felt recoil and muzzle rise on my Glock 19 G3. Great alternative for those of us who live in Commiefornia. Adds to the overall length of the gun. Took a little getting used to how it shoots.
1/1 found this helpful
Helpful Positive Review Totally Impressed! by Richard Roderick, September 4, 2021
Installed one on my 3rd Generation Glock 19 last week. I’m totally impressed with it. After running about 400 rounds through it, I couldn’t be happier. My on target time has increased and 5 round groupings are tighter and can be covered with a .50 ce...
Read More...
3/4 found this helpful
Helpful Positive Review Great unique comp by Niko, Verified Owner, July 3, 2020
This comp came to my attention due to the fact that it does not require a threaded barrel - as it mounts directly onto the front of the guide rod. This curiously also makes it a relatively effective standoff device (something a normal comp won't do)....
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2/5 found this helpful
Helpful Negative Review WARNING!!! Ruins Slide Finishes!!! by Shooter, October 16, 2022
WARNING WARNING WARNING!!! This device will RUIN the finish on the front of your slide. I shot 20rds, on a brand new slide, to test this thing out. After just 20rds it had completely eaten through the cerakote finish in two places on the slide’s fron...
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12/34 found this helpful
Most Recent Reviews Works excellent! by James Robinson, Verified Owner, December 17, 2023
Really easy to install. Seems to make a rather noticeable difference in recoil and looks amazing!
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Most Recent Reviews SI G3 Mass Driver by Wicky, February 18, 2024
I was in between this and a rail mounted compensator for my Glock. As I live in CA you probably know we have some of the most ridiculous gun laws and are not permitted threaded barrels so the Radian afterburner was out of the question. On another not...
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Product Info for Strike Industries G3 Mass Driver Barrel Compensator

For the smoothest draws, use a compensator such as the Strike Industries Mass Driver Barrel Compensator to counter recoil. These PSR accessories from Strike Industries are designed to be used with Glock handguns without permanent modification, and the innovative design is the foundation of the Mass Driver concept. When you draw your Glock, the compensator moves to absorb the recoil, which reduces your felt recoil. If you close your eyes and hold your gun normally, you might just notice the comp moving slightly forward. Widen the bore, if you wish, but the compensator won't affect your shooting in anyway. The integrated 2.5mm relief cut and the forward-facing port diminish the lip that typical compensators create, reducing lipping and damage to the face of the slide. A blend with the shape and texture of your handgun gives this device a no-snag, smooth draw. Use the Strike Industries Mass Driver Compensator with your Glock handgun for a recoil-reducing upgrade that is sure to impress your shooting partners.image

WARNING: California`s Proposition 65

Specifications for Strike Industries G3 Mass Driver Barrel Compensator:

Manufacturer: Strike Industries
Color: Black
Cartridge: 9mm Luger
Finish: QPQ
Fabric/Material: CNC Machined
Threads per Inch: Non Threaded
Gun Make: Glock
Inner Diameter: 0.5 in
Length: 35.85 in
Weight: 3.2 oz
Condition: New
Width: 26.1 in

Features of Strike Industries G3 Mass Driver Barrel Compensator

  • No threaded barrel needed (but can be used)
  • Eliminates the need for threaded barrels. 50 State Legal
  • Widened bore to reduce baffle strikes and keyholing rounds
  • 2.5mm relief cut at the top rear of comp to reduce "lipping" and damage to the face of the slide
  • No permanent modification of weapon required
  • Blended, no snag profile
  • Matches with width of the slide, it can be used with open holsters, no special holster needed
  • Counter recoil design, as the slide moves back the comp moves forward to reduce felt recoil
  • Contours with slide dimensions to be compatible with most openbottom holsters
  • Precision CNC machined

Package Contents:

  • Strike Industries G3 Mass Driver Barrel Compensator
  • x1 Comp main body
  • x1 Recoil spring
  • x1 Guide rod
  • x1 Guide rod fitment washer
  • x1 Guide rod head
  • x1 Internal spring
  • x1 Guide rod plug (GEN4 only)
  • x1 Warning card

Strike Industries G3 Mass Driver Barrel Compensator Orderable Models

List of Orderable Models

Strike Industries G3 Mass Driver Barrel Compensator, Standard for Glock 17, Black, One Size, SI-G3-MDCOMP-S , MPN: SI-G3-MDCOMP-S , UPC: 708747548440 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-S
Strike Industries G3 Mass Driver Barrel Compensator, Compact for Glock 19, Black, One Size, SI-G3-MDCOMP-C , MPN: SI-G3-MDCOMP-C , UPC: 708747548051 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-C
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