SKU: 13309658381

Strike Industries G4 Mass Driver Comp - Standard (Glock 17)

$5715.00 $6350.00
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Description

Strike Industries G4 Mass Driver Comp - Standard (Glock 17)Description The Strike Industries Mass Driver Compensator (MDC) represents a quantum leap in compensator design. Current designs have largely been unchanged since the 1930s. Its about time for something revolutionary. The Mass Driver name is inspired by the idea of theoretical mass driver engines in space travel. By ejecting mass, an equal and opposite reaction is generated propelling the space vehicle forward. The Mass Driver Compensator is driven by

Description

The Strike Industries Mass Driver Compensator (MDC) represents a quantum leap in compensator design. Current designs have largely been unchanged since the 1930s. It’s about time for something revolutionary. The Mass Driver name is inspired by the idea of theoretical mass driver engines in space travel. By ejecting mass, an equal and opposite reaction is generated propelling the space vehicle forward. The Mass Driver Compensator is driven by the hot gasses expelled through the barrel after the round is discharged, and acts as a counter balance system to attenuate mechanical recoil. Barrel mounted compensators add reciprocating mass and increase the moment of inertia to the operating system, which can have a negative effect on reliable cycling of recoil operated handguns. By separating the compensator from the operating components after ignition, the MDC allows for close to stock cyclic speeds, and reduces reciprocating mass. The compensator of the MDC system has a widened bore to reduce baffle strikes and keyholing rounds along with a 2.5mm relief cut at the top of the rear to reduce “lipping” and damage to the face of the pistol slide.

Threaded Barrels: 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 but not all. However we recommend use with non-threaded barrels if possible.

COMPATIBILITY:
-For GLOCK™ GEN3, GEN4 or GEN5 G19 (compact) & G17 (standard) SLIDES
-Holsters: SI Mass Driver Comp sits flush with OEM GLOCK™ slides and can be used in most open-ended holsters that accommodate compensators

NOTE:
-Recommended torque value for guide rod nut is 25 lbs/in.
-Use with +P and +P+ 9mm ammo will produce premature internal spring wear and cause failure

Package Contents:
-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

Product Features:
-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.

NOTES:
-Designed for and tested on OEM GLOCK™ factory and Strike Industries slides
-SI cannot guarantee proper fitment and application on third party slides and frames
-Recommended torque value for guide rod nut is 25 lbs/in.
-Use with +P and +P+ 9mm ammo will produce premature internal spring wear and cause failure
-Loctite® Threadlocker Blue 242® on all threads
-Gunsmith or armorer installation recommended
-Product tested with factory GLOCK™ components
-Performance may vary when using third party compatible GLOCK™ components
-Consult with a local gunsmith for any custom modification while use with this product

COMPATIBILITY:
-For GLOCK™ GEN3, GEN4 OR GEN5 G19 (compact) & G17 (standard) SLIDES
-Holsters: SI Mass Driver Comp sits flush with OEM GLOCK™ slides and can be used in most open-ended holsters that accommodate compensators

DISCLAIMER:
-This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.
--“GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither Strike Industries Inc. nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 13309658381

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4.5 ★★★★★
Based on 8 reviews
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Product Reviews
H
Verified Purchase
Helena
Bozeman, US
★★★★★ 5
These are definitely indestructible
Size: Medium
Both of my dogs can destroy a ball in a matter of minutes if I let them play with them (supervised) as is. Well not with these balls. They are the ONLY ones I have found that are 100% indestructible. Please only let your dogs play with these as a toy when supervised though. They go really far when throwing them, so both dogs get a good amount of running and exercise with these. I also bought these because they have the hole in the middle of the ball which is very important in the event that a dog gets one stuck at the back of their throat. This allows them to breath unlike those without this hold. It's an unlikely event, but as dog owners, we all need to be aware of this and educate ourselves on what to do if this SHOULD happen. This isn't a scare tactic, nor a reflection of this particular brand, it can happen with any type of ball. My two dogs are about 45ish lbs and the size is perfect for them, I don't want anything smaller than this. They love them. There is no annoying squeak. Really easy to wash after use. Some balls take forever to get the slimy saliva off, but these don't.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
A
Verified Purchase
Ale quintero
Battle Creek, US
★★★★★ 5
He loves this ball
Size: Medium, Size: Medium
My dog loves this ball. It’s the perfect size, he enjoys playing fetch and this ball has been his fav one. Thank you guys for making my lil one happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
W
Verified Purchase
wild animals
Waukegan, US
★★★★★ 5
Best toy, the end
Style: Sport, Size: 12in, Style: Sport, Size: 12in
Combined with the Max Glow ball, this is the best dog toy available on modern planet Earth. I have a burly 92lb. pit bull mix with highly developed prey drive, and she will chase the glow ball for hours if I let her. The tiny sport launcher (Sport 12M) is the best, because you can still throw the ball really far, but you can also slam the ball down a few feet away from yourself so it bounces up in the air and your dog has to jump to catch it, or you can throw it up really high so it bounces 15' away or so and your dog can jump to catch it. We sometimes have to play fetch in a pretty small area, so it's nice to have the small launcher for these games. The larger launchers aren't as fun in small areas. You can play the same games but it's trickier to throw the ball correctly. Also, the small launcher is a lot easier to carry. The small launcher fits in my dog-walk-stuff backpack (with the ball in the launcher so I don't have to dig for it later), but the big ones don't easily. The launcher also has a hole in the end so you can hang it from your bag or whatever with a carabiner. The big ones are too long for that in most cases, and swing back and forth. Also-also my dog loves to ask for the launcher, then when I give it to her she plays keep-away and it's adorable. The big launcher I have is harder for her to balance in her mouth, so she just lays down and chews on it until it gets taken away. She's chewed on all of the four Chuck Its we've owned, but she's only broken one (a big one), but that's because she got ahold of it when no one was home. The little one in my bag is totally chewed up but still works great. I think they're sturdier than the big ones. Except for the launcher she chewed into pieces, which was our fault, the only reason we've had to replace anything was because we lost it. Usually we keep the launcher and ball in the backpack so she can't get to them and so they don't get lost, so we rarely have to replace them. There is just not a better value in toys, and the startup price is really low. Once again I really recommend the glow ball! It doesn't get soggy no matter how wet the grass or the dog mouth is. It is fun to chase because it is slippery and it collapses when it's squeezed, so it pops out of the dog's mouth and flies away if they bite it at the wrong angle; it's really bouncy, and stays bouncy because it can't be popped; it whistles so you can usually hear it even if you can't see it; and it really glows enough for nighttime catch, even if you only have your cellphone flashlight to charge it up! UPDATE: I should have said, we have the 12M launcher, which means the handle is 12 inches long and it uses a medium-sized ball. The medium ball is 2.5 inches in diameter, so the launcher will fit regular tennis balls, too! But my dog won't play with regular tennis balls anymore because they aren't anywhere near as fun as the glow balls, and I think she doesn't like having gross sloshy muddy tennis balls in her mouth. I lost my short launcher awhile back and could only get a long one locally to replace it, which reminded me that you have to lean over a lot further to use the short launcher. So if you have trouble leaning over to the point that your hand is a foot above the ground, this may be hard for you to use. I wish Amazon would let us choose colors, because my old one was green, and the big one is orange, both of which are bright enough to see in the grass from far away, even at night. Still, best toy!
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Reviewed in the United States on May 19, 2017
A
Verified Purchase
Amazon Fan
Chelsea, US
★★★★★ 5
Highly recommend.
Style: Sport, Size: 12in
Love this. Dog sitting for a dog that loves to chase balls but my shoulder doesn’t like throwing them. Got this yesterday and it’s perfect. Real arm/shoulder saver. Seems sturdy and I was concerned that a standard tennis ball would not work. We tend to lose balls when walking because this lab insists on carrying the ball in its mouth. They work.
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Reviewed in the United States on March 22, 2026
D
Verified Purchase
Dobelvr
New York, US
★★★★★ 5
These are awesome and I couldn't play ball with my Dobermans without it!
Style: Sport, Size: 12in
I LOVE Chuckit ball launchers. We've been using for a around 17 years and we've only had to replace one. We have 2 active, energetic Dobermans and I throw like a girl and there is now way I can throw a ball very far. With the Chuckit, I can throw more than 80 feet! My dogs need a lot of exercise and using this ball thrower allows me to make that happen. Bonus is I dont have to pick up a snobbery ball :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026

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