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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 ALL JUST OPINIONS by Richard Morse, Verified Owner, November 1, 2023
So,... I read other peoples reviews and I dont know why others are having issues with this product. This is my second one and I must say that these comps are the best I have used thus far. I have tried from cheap EBay to Wasatch Arms expensive, scr...
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1/1 found this helpful
Helpful Positive Review Great Compensator!! by chip0105, Verified Owner, April 30, 2024
Though this compensator might feel a little bulky on the front of your Glock, in my honest opinion, it considerably reduces muzzle flip. I now have 4 of these and I would highly recommend them to anyone looking to increase their accuracy; especially...
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1/1 found this helpful
Helpful Positive Review Can't Beat This Compensator! by chip0105, Verified Owner, May 7, 2024
I have purchased 3 of these Strike Industries Mass Driver Barrel Compensators so far and love how well they work. I have them installed on a couple of my Glock 19 Gen 3 pistols as well as a Glock 17 Gen 5. These are very easy to install and reduce mu...
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1/1 found this helpful
Helpful Positive Review simple yet effective by Teddy Rivera, Verified Owner, November 9, 2024
If you are on the fence about compensating your Glock 19 well I can tell you this is well worth it. More muzzle control for fast follow up shots makes this product a keeper. Yes it does add length to your slide but that part of the gun should be bel...
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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.
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Helpful Positive Review Totally Impressed! by Richard Roderick, September 4, 2021
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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
Caliber: 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
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 open-bottom holsters
  • Precision CNC machined
  • Threaded Barrels: We recommend use with non-threaded barrels if possible but yes, the Mass Driver Comp is compatible with most GLOCK aftermarket threaded barrels. We've tested with majority of the popular brands on the market such as: AlphaWolf, Battle Arms Development, Bear Creek Arsenal, Brownells, CMC Triggers, Faxon Firearms, Fortis Manufacturing, Grey Ghost Precision, Killer Innovations, LANTAC, Lone Wolf Distributors, Next Level Armament, Shadow Systems, Suarez International, Tactical Kinetics, ZEV Technologies.

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
USED, Strike Industries G3 Mass Driver Barrel Compensator, Standard for Glock 17, Black, One Size, SI-G3-MDCOMP-S , MPN: SI-G3-MDCOMP-S-EDEMO , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-S-EDEMO-IN-D
USED Strike Industries G3 Mass Driver Barrel Compensator, Compact for Glock 19, Black, One Size, SI-G3-MDCOMP-C, EDEMO9, Condition Fair, Installed/Mounted , MPN: SI-G3-MDCOMP-C-EDEMO9 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-C-EDEMO-IN-D

Strike Industries G3 Mass Driver Barrel Compensator Unavailable & Discontinued Models

List of Unorderable Models

USED, Strike Industries G3 Mass Driver Barrel Compensator, Standard for Glock 17, Black, One Size, SI-G3-MDCOMP-S , MPN: SI-G3-MDCOMP-S-EDEMO , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-S-EDEMO-SC-C
USED Strike Industries G3 Mass Driver Barrel Compensator, Compact for Glock 19, Black, One Size, SI-G3-MDCOMP-C, EDEMO7, Condition Parts Only/Salvage, Defective , MPN: SI-G3-MDCOMP-C-EDEMO7 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-C-EDEMO-DF-F
USED Strike Industries G3 Mass Driver Barrel Compensator, Compact for Glock 19, Black, One Size, SI-G3-MDCOMP-C, EDEMO10, Used, Condition Fair , MPN: SI-G3-MDCOMP-C-EDEMO10 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-C-EDEMO10
USED Strike Industries G3 Mass Driver Barrel Compensator, Compact for Glock 19, Black, One Size, SI-G3-MDCOMP-C, EDEMO8, Used, Condition Fair , MPN: SI-G3-MDCOMP-C-EDEMO8 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-C-EDEMO8
USED Strike Industries G3 Mass Driver Barrel Compensator, Standard for Glock 17, Black, One Size, SI-G3-MDCOMP-S, EDEMO3, Used, Condition Fair , MPN: SI-G3-MDCOMP-S-EDEMO3 , Code: 3Q-BCM-G3MD-SI-G3-MDCOMP-S-EDEMO3
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