SKU: 13309658381

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

Sale price$5715.00 Regular price$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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4.2 ★★★★★
Based on 21 reviews
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Verified Purchase
Veronica Mariano
Whiting, US
★★★★★ 5
Strong and holds up to aggressive chewing
Color: Blue, Color: Blue
This was a fast favorite for our extremely aggressive chewer ('indestructible' toys are typically destroyed within hours)... this has survived about a week and still going strong.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
J
Verified Purchase
Judy P.
San Leandro, US
★★★★★ 4
My dog is a very aggressive chewer.
Color: Blue
My dog is an aggressive chewer and this lasted about 3 weeks before he started to get into the plastic and I had to throw away. It lasted longer than other chew toys so it was good. However the tail makes it easier for him to chew off into pieces. He gets nervous and needs to chew on something. I find the hard cheese sticks a better option for his nervousness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
C
Verified Purchase
Collin M.
Battle Creek, US
★★★★★ 5
Fun Dog Toy, Relatively Durable, Looks Great, and Squeaker Isn't Annoying!
Color: Deep Green, Size: 10 IN
This is a fun and well-made dog toy that’s held up better than expected, especially considering my dog usually makes quick work of stuffed toys. He’s not the most aggressive chewer, but he’s definitely skilled at tearing things up over time, and this one is still going strong so far. The plush armadillo design is adorable and comes in a variety of color options, which is a nice bonus. It has your standard fluff type filling, and I really appreciate that the squeaker has more of that low grunting sound (like a pig), rather than a sharp, high-pitched one. It’s much less annoying to listen to during playtime. The 10" size was just right for my 45 lb dog, offering a good size for tugging and carrying around. Comfortable to hold, seemingly durable so far, and cute design. Seems to be a winner, would recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025
A
Verified Purchase
AmazonBob407
Battle Creek, US
★★★★★ 5
Perfect size, cute, reasonably durable, and my dog loves it.
Color: Pink, Size: 8 IN, Color: Pink, Size: 8 IN
I ordered this for my 2year old, 55lb Staffy Pitt mix. She’s usually pretty rough on toys. She seems to either destroy them after 15 minutes, or, in a few instances, decides that she likes them enough to treat them more gently, in which they last for months or longer. I have no idea how she chooses, but in this case, she pretty much immediately ripped off part of an ear, but then, and since that time, has played and chewed on it without causing further damage. The toy is pretty adorable and looks and feels well made. It’s not constructed with a super durable material like some toys made for aggressive chewers are, but it’s also not marketed as a toy for aggressive chewers, so the material used is appropriate. The fabric feels dense and of a high quality, and the stitching looks to be of a high quality as well. I chose the 8-inch version in pink, and I’m happy with this size. It’s not too big, nor too small, and is easily portable. It arrived smashed up in a small bag, and I thought maybe it would be deformed when I took it out, but it wasn’t. It unfolded right away and then maintained its normal shape perfectly. Happy with this product, and after receiving it, I ended up ordering another, this time the 6-inch version, and while that is also a nice option, I like, and feel that the 8-inch version is a better deal. If this toy continues to last for a few more months, I would order another one, as my dog enjoys playing with it. It’s not her go to toy, but it is one of the few she keeps in playing rotation on a regular basis.
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Reviewed in the United States on September 12, 2024
P
Verified Purchase
princeton von d
Boise, US
★★★★★ 5
Luxurious Feel, Durable Build… but Full Rotation Privileges Have Been Revoked 💙🦴 🐾
Color: Blue, Size: 6 IN, Color: Blue, Size: 6 IN
🐾 Hi, I’m PVD; toy curator, plush critic & occasional chew sommelier. This armadillo arrived beautifully packaged and immediately met my standards for texture, squeak clarity and cuddle factor. I originally gave it 5 stars for quality; and still do! But today I’m updating the review to reflect my current toy lifestyle rotation. 😌 What impressed me from day one: ✔️ High-end plush feel; soft enough to nap on, tough enough for energetic zoom bites and great relief from teething ✔️ Strong stitching; survived multiple “stress tests” (I chewed with intention) ✔️ HQ squeaker; not tinny or annoying, more of a honk ✔️ 6in is perfect size for small breeds; easy to carry during dramatic hallway walks Why it now gets 4 stars from a seasoned toy collector: ✘ As my luxury toy collection expanded, this one gets grabbed less often ✘ Simple design; I now favor more interactive or complex textures ✘ Still “keep-worthy,” just no longer VIP spot on the chaise lounge Best For: • Pups who enjoy soft comfort toys or emotional support snuggles • Light to moderate chewers • Dogs who like to carry their plushes around proudly • Ideal as a teething toy or thoughtful gift 🚫 Not ideal for: power chewers or highly stimulation-driven pups (like me now; my taste evolved) 📝 Final Re-Barks: Still recommend for pups who love cuddly squeaky companions. Great starter plush and great quality; just know that ultra-picky toy enthusiasts may rotate it out once newer models (or squeakier friends) arrive. — PVD (Plush Aficionado, Toy Rotation Director & High-Maintenance Household Icon) 🐶💁🏻‍♂️✨
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025

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