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"Cornerstone" Safety Thumb Ledge for Ruger® MKIV™

Part Number:TK32N0346

4 Review(s)

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Your Price: $59.99

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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

Please note: Some modification of the grips may be required for proper fit on Hunter and Target models that use the target wraparound wood laminate grips with finger grooves.

Excellent fit and finish

I have been waiting for the MK4 SS version for some time. It fits my hunter perfectly. Same smooth durable finish as halo ring. Excellent product!

Did you find this helpful? 5 of 5 Found Helpful

Reviewed by: (Verified Buyer) Paul Sun from Riverside. on 8/3/2019

Cornerstone Saftey

The Cornerstone thumb ledge solves a major problem of accidentally engaging the safety on the MK IV.

Did you find this helpful? 3 of 3 Found Helpful

Reviewed by: Tom Sigmon from USA. on 9/22/2019

Ledge safety

If you like to shoot thumb riding the safety, like on a 1911. This is the way to go. The thumb stays clear of the slide lock and the wide ledge helps make the grip more consistent. Combine it with the thumb rest for the weak hand and the gun becomes much more stable in my opinion.

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Reviewed by: Jeff from USA. on 2/5/2020

Thumb shell

A great product for a good price. Now the we have this product I will listen yke to see a different model for a bit more money the have the thumb shell be able to adjust the angle and height with a set screw

Did you find this helpful? 0 of 3 Found Helpful

Reviewed by: Marcelo Rafaniello from Saint Petersburg . on 9/15/2019