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Questions & Answers
Does this fit the MKIV 22/45 lite? Expert Answer

Yes, the TANDEMKROSS Cornerstone Safety Thumb Ledge is compatible with the MKIV 22/45, MKIV 22/45 Tactical, and MKIV 22/45 Lite.

by Ethan, Gear Expert, January 26, 2023
Hi, is this compatible for a mark 3? Expert Answer

No it is not.

by Todd, Gear Expert, September 18, 2021
Customer Reviews
Most Recent Reviews Feels Like My 1911’s and Improves Grip by jqar45, Verified Owner, November 30, 2024
The Cornerstone makes my 22/45 grip feel as good as my 1911’s! Very easy to install, looks great and has a better price point than other brands. Just make sure you’re ordering the correct safety. I have a Mark IV 22/45 Lite and mistakenly ordered the...
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Most Recent Reviews Well made! Watch the installation video. by Tom, Verified Owner, March 12, 2024
I feel like I have more Tandemcroos on my Ruger then I do Ruger parts :). I highly recommend watching the video a couple times before the install. I messed up by tightening up the screw, that holds it in place, too tight. I rewatched the video and di...
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Most Recent Reviews Two thumbs Up! by Chicago Guy, Verified Owner, February 28, 2024
The Tandemkross Cornerstone Safety Thumb Ledge for Ruger is an awesome product. It helps with precision shooting and simply works!! Great idea and a great product!!
Most Recent Reviews Worth the difficulty by Julie, August 19, 2021
Although it was not the easiest piece to replace/upgrade, it was worth it. Thank goodness for YouTube. I am a newbie, maybe that's why it was so difficult for me. But… I did it! It helos me enjoy my Mark IV that much more.
Most Recent Reviews Cornerstone thumb ledge by Jon, Verified Owner, July 4, 2020
The cornerstone safety thumb ledge greatly improves accuracy and quick target acquisition. Not only is it more comfortable than the factory safety, it is smoother as well. It was a little tight at first (i also have the volquartsen accurizing kit ins...
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0/1 found this helpful
Most Recent Reviews I ordered Red. Got Black by Drew, Verified Owner, February 27, 2019
Ordered Red because Black was out of stock. I received Black. Generally I'd be upset, but Black was what I wanted to begin with. Fits perfect, I like what it does. Out of the box, its a solid part.
0/1 found this helpful
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Product Info for TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger

Whether youre 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 new Cornerstone Safety Thumb Ledge from TANDEMKROSS is the ideal upgrade to boost your control!image

Now available for the MKIV, the oversized, 1911-style Safety Thumb 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 MKIV is also a great opportunity to remove the factory ambidextrous safety, which can pinch some users' fingers while shooting.

The aluminum Cornerstone 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 MKIV accessories for competition shooters. Get your Cornerstone Safety Thumb Ledge today and lay the foundation for a better grip!

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. If you cannot locate this spacer, please contact TANDEMKROSS or Ruger and we can assist you with locating one.

WARNING: California`s Proposition 65

Specifications for TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger:

Manufacturer: TANDEMKROSS
Fabric/Material: Anodized Aluminum
Hand: Ambidextrous
Gun Make: Ruger
Gun Type: Pistol
Condition: New

Features of TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger

  • Oversized, 1911-style safety ledge
  • Enhances factory safety
  • Improves hand placement for better grip, control

Package Contents:

  • TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger

TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger Orderable Models

List of Orderable Models

TANDEMKROSS Cornerstone Safety Thumb Ledge, Ruger Mark IV, Red, TK24N0346RED1 , MPN: TK24N0346RED1 , UPC: 769498484920 , Code: 3GZ-PFS-CSTLMRIV-TK24N0346RED1
TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger MKIV 22/45, Red, TK26N0270RED1 , MPN: TK26N0270RED1 , Code: 3GZ-PFS-CSTLMRIV-TK26N0270RED1
TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger MKIV 22/45, Black, TK26N0270BLK1 , MPN: TK26N0270BLK1 , Code: 3GZ-PFS-CSTLMRIV-TK26N0270BLK1
TANDEMKROSS Cornerstone Safety Thumb Ledge, Ruger Mark IV, Black, TK24N0346BLK1 , MPN: TK24N0346BLK1 , UPC: 769498484913 , Code: 3GZ-PFS-CSTLMRIV-TK24N0346BLK1

TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger Unavailable & Discontinued Models

List of Unorderable Models

USED TANDEMKROSS Cornerstone Safety Thumb Ledge for Ruger MKIV 22/45, Red, TK26N0270RED1, EDEMO3, Condition Parts Only/Salvage, Wrong Product , MPN: TK26N0270RED1-EDEMO3 , Code: 3GZ-PFS-CSTLMRIV-TK26N0270RED1-EDEMO-WP-F
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