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.
82 Reviews
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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!
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Cornerstone Safety
This part instantly eliminates the Ruger MK IV accidental safety activation problem!
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Pretty cool
This was one of those items I wasn't really sure I needed until I tried it! Now that I have I wouldn't go back. It offers positive safety engagement & allows you a place to dock your rear thumb pair with a gas pedal this makes for a superb hand hold which will lock you into the same position every single time. I highly recommend this to anyone
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Safety Thumb ledge
This "ledge" is quick to use especially drawing from a holster at Steel Challenge. My thumb naturally finds the safety and depresses as the gun comes to firing position. Very good design.
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Safety Thumb Ledge
The Thumb Ledge works great, does the job, allows you to lock up and steady your hold on the 22/45. For me, it cut down on the shaking and wandering of the barrel. Well made and fine fit like all of the products I have gotten from TandemKross.
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Must Have
No matter what shooting discipline I’m competing in I try to take as many variables as I can out of the equation so I can concentrate on the goal. For me the Ruger MK-IV 22/45 safety was too easy to accidentally engage with my right hand thumb joint as I brought the gun up. A helpful fellow competitor allowed me to try the Safety Thumb Ledge and I was instantly a fan. It eliminates any chance of an accidental safety engagement and it also provides solid feedback for engagement of the safety at the end of a string. 6-Stars!!!
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Cornerstone Thumb Ledge
Great option for right handed users. This in conjunction with the Thumb Rest by Striplin Custom Guns gets you a great consistent grip for improved accuracy.
