Cornerstone Rotary Safety for Ruger® PC Carbine™
Cornerstone Rotary Safety for Ruger® PC Carbine™

Cornerstone Rotary Safety for Ruger® PC Carbine™

Part Number:TK28N0501
Average Rating
Your Price: $34.99
In Stock

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At a Glance:

  • Ambidextrous, rotary safety; right or left hand friendly

  • Allows for single handed use without having to break grip

  • Clearly shows safe or fire from either side of the firearm

The TANDEMKROSS family of Cornerstones just got bigger! Introducing the Cornerstone Rotary Safety for Ruger® PC Carbine™.

While cross bolt (push-button) safeties are fairly easy to use, they can still be improved. One crucial flaw with the traditional cross-bolt design is that the only person who can easily, visually confirm the SAFE or FIRE state of the firearm is the user. Another weakness to be improved is that regardless of whether you are left- or right-handed, you have to break your grip at least once when toggling between SAFE or FIRE.

Our ambidextrous safety solves both of these issues with a single upgrade! The Cornerstone’s levers on both sides of the firearm visibly show a clear difference between SAFE and FIRE to the user and those standing nearby. You can also switch between SAFE and FIRE while maintaining a firm grip on the firearm with your shooting hand!

A toggle-style safety selector also reduces the possibility of an accidental button push. Resting your firearm on an uneven surface or something else bumping the housing could potentially switch a cross bolt safety from the intended SAFE or FIRE position to its unintended opposite. A rotary safety helps ensure a change in the firearm’s state must be intentional and helps to make it safer.

Cornerstone Safeties are already major upgrades for the Ruger® Mark IV™ and Mark IV™ 22/45™. The Cornerstone Rotary Safety was previously only available with the Manticore Trigger Assembly for Ruger® 10/22®, but can now be yours for your Ruger® PC Carbine™ or PC Charger™!

Make your life easier! Grab an ambidextrous Cornerstone Rotary Safety for Ruger® PC Carbine™ and make your good gun great today!

Compatibility Note: TANDEMKROSS’s Cornerstone Rotary Safety is compatible with factory Ruger® PC Carbine™ polymer trigger housings. Compatibility with aftermarket trigger housings is not guaranteed.

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

5 Stars
Major Improvement
This variant for the PC carbine feels great. Very smooth/positive engagement between safe and fire. Will still take a little getting used to, but so much better than the cross bolt safety as far as the manual of arms and being able to quickly get up on the gun to engage a target. The only setback with this is that you will have to remove the safety levers every time you remove the action from the stock, so apply loctite at your discretion. Only word of warning is to watch an installation video before you start taking anything apart; I almost couldn't get my plunger and spring back in the trigger housing because I am a dingbat.
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from Lexington park. on 7/25/2023
5 Stars
Rotarty Safety upgrade for Ruger PC Carbine
Crossbolt safety is okay, but this rotary safety is visually a positive affirmation, and is ambidextrous as well. Sweet! Thanx TK!
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Lewisburg, Oregon. on 8/3/2023
5 Stars
Ruger PCC Rotary Safety
The install was a little tricky, but help from a video and I was able to get the new drum installed. I love the position of the lever and it brings a whole new feel to the rifle. I do wish they would have an optional cap for one side to just run the safety in one side or the other not both. I can see the possibility of snagging issues while having rifle slung.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Idaho. on 12/2/2023
5 Stars
This safety system is the best I have ever installed. This is 100% better than factory. Very safe and easy to operate. Well done men.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from Iowa. on 8/23/2023
5 Stars
Cornerstone Safety a Must-Have!
This is by far the BEST upgrade I’ve made to my PC Charger - especially as a lefty. Left or right, this is a game changing improvement for much easier, more natural manual of arms. Carbine, Charger, or 10/22, get this!
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by: (Verified Buyer)  from NC. on 10/21/2023

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