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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Cornerstone safety
Awesome product! High quality little anodized aluminum safety. Such a vibrant color. Nothing but quality when I shop with Tandemkross.
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Safety Thumb Ledge
This Cornerstone Safety Thumb Ledge is very comfortable as a thumb rest and feels like it provides added stability on the grip. It does not have an audible click when toggling the safety on & off and feels a bit mushy though. Flipping it up into safe mode with the thumb from the bottom side of the ledge is not as comfortable or easy as I expected. Also, gripping with the thumb under the safety is no longer an option, but then again it does precisely what it's designed to do which is for the thumb to comfortably ride the safety. Overall, I'm very glad to have this upgrade on my pistol!
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cornerstone safety thumb ledge
nice quality and fairly straight forward install but the innards to my gun came out but was able to remedy the situation no problem, function is xlnt. and i got red, contrasts very nicely with my green 22-45 lite, might want to consider a little blue thread locker on tiny screw which replaces ambi safety, mine backed out a little during shooting
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CORNERSTONE SAFETY
THESE FOLKS ARE TOP NOTCH! I had an issue with my purchase because i ordered the wrong part. Not only did these folks ferret out the problem but they issued me a replacement AND I bought another for another pistol. It was a WIN WIN all the way around. I shipped the wrong one back and i have installed the correct 2 without issue and easy to do. AGAIN GREAT folks to work with!
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Cornerstone Safety thumb Ledge
I like it . I have Ruger oversize wood grips on my pistol and it's very easy to use the safety. I did have to modify the safety slot in the grip but a very easy task
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thumbrest
Nice natural angle for a steady grip.
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"Cornerstone" safety thumb ledge
I thought my Ruger Mark IV 22/45 lite was a fantastic, nearly perfect 22lr pistol for fun on the range, until I got it in my hands. Boy, was there a real problem with the pistol, the safety. It was clumsy and awkward, ill-conceived in design and took away a great deal of pleasure from an otherwise almost perfect firearm for me. But wait! Tandemkross comes to the rescue with the new "Cornerstone" safety thumb ledge. What a difference this has made to the ergonomics for this pistol! If you are an owner of a Ruger Mark IV 22/45 lite, this is a "must do" modification to your pistol in my opinion. Beleive me, this improves the feel and function of the pistol beyond any other simple mod that can be done to it. Ruger should take note of the Cornerstone safety thumb ledge in their next design change for the Ruger 22/45 line of pistols.
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Love this Product
Makes it much more comfortable to hold the Gun. Easier to access safety and also is a great looking addition
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Good Could be better.
Great replacement if the factory safety switch got destroyed while trying to remove the ambi safety ,due to a stripped screw, only complaints is the edges are a little to fine ,imagine your thumb is a little kids head running into the corner of a table, my thumb has a little skin missing now from cycling the safety trying to get the ambi safety washer to the perfect tightness , is the washer supposed to be able to spin is it supposed to be tight but not to tight , like what does that mean, all I know is it’s great for what it is , ,
