TANDEMKROSS “Accelerator” installed on Glock 34 MOS

Gain the competitive edge with the TANDEMKROSS “Accelerator”, a VERY high-quality thumb ledge that your Glock wants! Plain and simple, the TANDEMKROSS (TK) “Accelerator” provides you with a platform to establish precise hand positioning to better drive your Glock platform.

Allowing you forward thumb to be nicely seated with a solid grip you’re going immediately notice the difference in feel and control.

This thumb-ledge or also sometimes called a thumb-rest is for a right-handed shooter who uses an improved two-handed grip.

What models does it fit?

The TANDEMKROSS “Accelerator” will fit the “competition”, “standard”, and “long” size Glock models with easy install and a perfect fit. BUT without much effort at all I was able to also install this on a terminator themed Glock 19 as well, shown below. I’ve been shooting the G24 and G19 extensively and both run flawlessly. Installation on the G19 is a bit of a tight squeeze but not enough presure where I’m worried about bending/warping the polymer frame.

According to TK, the Competition Thumb Ledge fits the following Glock models:
Glock, Standard Model G17/G20/G21/G22/G24/G31/G37
Glock Competition G34/G35
Glock Long Slide G17L/ Mid 2002

My ridiculous terminator themed G19 Open Gun/Project Gun

The “Accelerator” is an 6061-T6 aluminum part produced in the U.S. and carries the lifetime warranty by TK. The quality of machining and durability is top notch as well.

Currently the “Accelerator” goes for $69.99 on the TK website and can also be discount/bundled with the “HALO” charging ring for Glock shooters. The “Accelerator” is also listed on Amazon (link below) for a few bucks more.

For any Glock competitive shooter who are browsing for a good thumb-ledge I would highly recommend checking out TANDEMKROSS, they have a great history with quality parts and I know this item will not disappoint.

Video of terminator g19 with “Accelerator” thumb ledge

With a consecutive solid grip being the starting point of any good pistol shooter, this thumb ledge legitimately supports just that. If you shoot in a division which allows thumb rests or just want to really drive your Glock more confidently, I say it’s a buy!



Material Disclosure

I received this product as a courtesy from the manufacturer via Spotter Up so I could test it and give my honest feedback. I am not bound by any written, verbal, or implied contract to give this product a good review. All opinions are my own and are based off my personal experience with the product.

*The views and opinions expressed on this website are solely those of the original authors and contributors. These views and opinions do not necessarily represent those of Spotter Up Magazine, the administrative staff, and/or any/all contributors to this site.






By AJ Saulls

Aj is a veteran and COO of Meridian Systematics, a Virginia based Defense Analytics firm. He regularly supports America’s finest warfighters at home and abroad.. When he’s not deployed, Aj is engulfed in Northern Virginia shooting sports as well as being an avid fly angler. Even though he’s made his living in data analytics, he’s a firm believer that we need to be disconnected and outdoors. Aj is a writer and supports Spotter Up as a knowledge platform for us to become better at what we love.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.