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 from TANDEMKROSS is the ideal upgrade to boost your control!
Now available for the MKIV, the oversized, 1911-style Safety Thumb 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" MKIV™ Safety Thumb Ledge is also a great opportunity to remove the factory ambidextrous safety, which can pinch some users' fingers while shooting.
The Ruger® MKIV™ aluminum "Corner Stone" 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 accessories for competition shooters. Get your "Cornerstone" Safety Thumb Ledge 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 locate this spacer, please contact TANDEMKROSS or Ruger® and we can assist you with locating one.

Supported Models:
Ruger® MKIV™ Standard
Ruger® MKIV™ Target
Ruger® MKIV™ Hunter
Ruger® MKIV™ Competition
Ruger® MKIV™ Tactical