Mark IV™ 22/45™ Cornerstone Safety Thumb Ledge

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 is an oversized, 1911-style safety ledge that enhances the external factory safety without modifying the internals of the safety mechanism. It provides an ideal thumb placement location for a secure grip and provides consistent hand positioning while helping to control muzzle flip.

This drop-in part is easy to install and does not change the internal components of the gun. Note: The "Cornerstone" installation utilizes a factory spacer included in your original box (this part is referenced in the Ruger® manual). This product fits the Mark™ IV™ 22/45™, Mark IV™ 22/45™ Tactical and Mark IV™ 22/45™ LITE. Available in black anodized aluminum. Made by Tandemkross.

Product ReviewsClick here to review this item

	This product is great...and an absolute upsell	9/5/2023
Ruger refuses to sell you the factory left side saftey, you have to send it in. If you're willing go buy the upgraded one you are allowed to do it yourself? I bought mine soon after they came out, I bought it used at a gun shop. Guy bought it didn't like it, they sent it off for the saftey recall. Serial begins in 401. Years of safe sitting later I decide to purchase a volquartsen trigger kit for it. I find that the aluminum screw was already rounded, and loctite applied. This was an aluminum screw, in the very hard steel safty component. I drilled the screw out and damaged the threads. I do my own work to understand my firearm. I would have been happy to purchase my factory saftey and install it myself.
- Gunner Wellman, IN

	More natural feel, than the stock safety	6/5/2019
I installed this safety on my pistol. It is a much better feel than the stock one.
- John, MA

Mark IV™ 22/45™ Cornerstone Safety Thumb Ledge - Black