TANDEMKROSS Ruger MK4™ 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 new "Cornerstone" Safety Thumb Ledge for Ruger® MKIV™ 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® MKIV™ 22/45™is also a great opportunity to remove the factory ambidextrous safety, which can pinch some users' fingers while shooting.
The Ruger® MKIV™ 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® MKIV™ 22/45™ accessories for competition shooters. Get your "Cornerstone" 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 located this spacer, please contact TANDEMKROSS or Ruger® and we can assist you with locating one.
Supported Models:
- Ruger® MKIV™ 22/45™
- Ruger® MKIV™ 22/45 Tactical™
- Ruger® MKIV™ 22/45 LITE™
Don't forget, all TANDEMKROSS products are Made in the USA and come with a LIFETIME guarantee!
WARNING: 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.
79 Reviews
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Very Nice!
Love the extension. Feels very comfortable while shooting
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Thumb safety
I very much like the concept (all my 1911s have larger thumb safeties). Even with my thumb riding the Cornerstone safety, it has a tendency to flip on in the middle of a course of fire. This seems to be some combination of where the safety contacts the base of my thumb and the recoil. I talked with another shooter who had the same problem but I m not sure how to fix it. Doesn t happen with the stock safety.
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Cornerstone Safety Thumb Ledge for Ruger Mark IV 22/45 Lite
The new "Cornerstone" Safety Ledge for my Ruger Mark IV 22/45 Lite pistol is a welcome addition. The installation was very tricky, but I fumbled my way through and the pistol functions fine.
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Cornerstone
Great addition to the Mark IV 22/45! In my eyes is almost a requirement! Goes along very nicely with the Hive grip! Next on the list is the forward thumb ledge!
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A Must Have
This and the front thumb rests are now on my Mark 4 and my Mamba.
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safety thumb rest
good design that enhances the funtion as a safety as well as a thimb rest
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Cornerstone safety
Easy installation, big improvement over the stock mark iv safety.
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Locks you right in
Excellent add on part for your 22/45, if you like to ride your safety this provides adequate real-estate for your thumb even if you have larger hands. Well Done Squirrel in CT
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Love this change
This has been of the best improvements to my gun I never forget to remove the safety now when getting ready to fire. It also helps with the grip of the pistol. I am very happy with this upgrade!
