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.
86 Reviews
-
Shooter
Installation was easy. Took all of 5 minutes if that. Used this for a shoot today and I like it! This ledge for my shooting thumb along with the Ruger® MKIV 22/45 Thumb Rest by Striplin Custom Guns for my off hand thumb gives me consistent placement for both hands. I have most (if not all) TK upgrades on my MK IV 22/45 and once again this is another great product of theirs that works. Recommended.
-
Amateur
Big improvement over stock Ruger safety. A bit of a hassle to install. Runs a little tighter than I like. I wish Ruger would have made safety function just like a 1911. Got four stars for Ruger design. I don't know how Tandemkross could improve their design without Ruger improving on theirs
-
Great Up Grade
Great addition to my Mark I would sure recommend it. Very easy to install. The video was a great help.
-
Nice addition
I like the cornerstone thumb ledge a lot. I use my pistol mostly for Steel Challenge and the thumb ledge definitely helps to keep a comfortable, strong, and consistent grip. It took me a few 100 rounds to get used to it but I was very happy with it once I did. Another good product from a company that is tops in service.
-
Great
Purchased for my Mark IV 22/45 Target before I even received my gun from LGS. It is a great add on for the Ruger. This provides a consistant grip. Also always know if your safety is off. I have large hands and this fit my grip perfect. Only slight complaint and its not much of one is switching it between safe and fire. The OEM safety provides an audible/ tactile "click" when going between the two. With this, the click was gone. Not a issue for me at all.
