TANDEMKROSS Ruger® Mark IV™ 22/45™ Cornerstone Thumb Ledge Installation Instructions
At a glance:
- Oversized, 1911-style safety ledge
- Enhances factory safety
- Improves hand placement for better grip, control
Whether you’re a competitive shooter working to improve your speed and accuracy or a weekend plinker looking for better control over your pistol, a strong, proper grip is key. The Cornerstone Safety Thumb Ledge for Ruger® Mark IV™ 22/45™ from TANDEMKROSS is the ideal upgrade to boost your control!
The oversized, 1911-style safety ledge, made from anodized aluminum, enhances the external factory safety, without modifying the internals of the safety mechanism. This drop-in part is easy to install and does not change the internal components of the gun. Installation of the Cornerstone Safety Thumb Ledge for Ruger® Mark IV™ 22/45™ is also a great opportunity to remove the factory ambidextrous safety, which can pinch some users' fingers while shooting.
The Ruger® Mark IV™ 22/45™ aluminum safety ledge offers an ideal thumb placement for a secure grip and provides consistent hand positioning and helps to control muzzle flip. This is one of the best Ruger® Mark IV™ 22/45™ accessories for competition shooters. Get your Cornerstone today and lay the foundation for a better grip!
Supported Models:
- Ruger® Mark IV™ 22/45™
- Ruger® Mark IV™ 22/45™ Tactical™
- Ruger® Mark IV™ 22/45™ LITE™
PLEASE NOTE: The Cornerstone installation utilizes a factory spacer included in your original box. This part is referenced on Page 23 of the original Ruger® manual.
This product is protected against mechanical failure for life by TANDEMKROSS’s Lifetime Guarantee. Learn more about our warranty and returns policies here.
warningWARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
91 Reviews
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Cornerstone safety thumb ledge
Very helpful for proper hand placement, especially for competition shooters, really eliminates accidentally turning on the safety during shooting.
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Work the way it should!!
Very happy with it my thumb sets on it perfect and helps alot!!!!
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Could be better
Needs to be rounded more. Activating the safety on has a squares edge that cuts in your thumb and could be a little wider for more control and textured please.
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Safety thumb ledge
Top quality product, easy to install
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CornerStone safety Ledge
Very good product , worked like a charm. Solved the problem of too loose of a thumb safety. Only complaint I have is that it should come with the spacer & screw or as an option when ordering or shown with the product. The spacer is for if you want to remove the left safety lever. I know it’s suppose to be included with the pistol from Ruger but it was missing in my kit. I had to make a separate order to get a spacer & screw.i e-mailed & called Ruger about spacer but never got it. Otherwise it’s a great product & I’m very happy with the products that i have bought from Tandemkross.
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Nice Addition
Great feature to add to the other Tandemkross mods I have installed on my MK IV 22/45. Because it is the 43921 model with full wood grips, I had to slightly modify the left grip for clearance. Easily done with a Dremel and looks and functions perfectly. Thanks.
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Thumb ledge
I really like this addition for my pistol. This along with the accelerator pedal give me more control on my Ruger 22/45.
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Great Addition
If you've done the trigger upgrade, this will be a piece of cake. I really liked the extra support. I was having an issue with the MK 22/45 jumping around and this really helps me stabilize the thumb.
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Great look and thumb rest.
Adds a nice look and thumb rest.
