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.
87 Reviews
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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.
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Thumb safety
A higher grade more durable component that makes the select from safe to fire switch much more solid. Great platform for giving your thumb a place to rest when firing. Already recommend to a friend of mine for his Mark IV 22/45. Thank you again
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Cornerstone Safety Thumb Ledge
This safety is way bigger than necessary and has sharp edges and corners. It will uncomfortably dig into top of the right thumb when using a two handed grip and in the off safety position. With a very fine belt on my sander I sanded half of the width away and smoothed over all the exposed edges and rounded the corners. Black finger nail polish covered the sanded areas. It's now about twice as big as the original Ruger safety but half as big the Tandemkross. I like this modified safety fine. The Ruger appears to be made of one piece of steel. The Tandemkross is aluminum and steel. The Tandemkrosss instruction video is very good.
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cornerstone safety
works great good instructions grip improvement
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Great part,works perfect with the thumb rest. Installation is very easy just follow the instructions.
I would definitely recommend this!
