"Ultimate" Trigger Kit for Ruger® Mark IV™
'Ultimate' Trigger Kit for Ruger® Mark IV™

"Ultimate" Trigger Kit for Ruger® Mark IV™

Part Number:TK24N0446
Average Rating
Your Price: $119.99
Not for Sale

Choose Options


The “Ultimate” Trigger Kit for Ruger® Mark IV™  is a match set ONLY - DO NOT use any other brand of sear and hammer with the TANDEMKROSS “Ultimate" Trigger Kit Ruger® Mark IV™ or 22/45™

At a glance:
  • “Victory” Trigger optimizes trigger pull thanks to built-in pre- and post-travel adjustability for fast and smooth trigger resets
  • Radiused sear and hammer interface for clean, crisp, and repeatable trigger pull
  • Approximately 2–2.5lb trigger pull (results may vary)
  • Neutrally balanced, drop-safe sear
  • Highly impact and wear resistant, heat treated, hardened S7 tool steel for long-lasting, optimal performance
The TANDEMKROSS “Ultimate” Trigger Kit upgrade is now available for the for Ruger® MKIV™!

This Kit is a completely new take on the Ruger® Mark IV™ fire control system! Every part of the trigger mechanism has been redesigned to reduce trigger pull weight and boost safety and reliability. The lubricant coating on the hammer and sear provide a consistently smooth hammer sear interface right out of the box.

The lighter [TK] hammer results in a higher velocity and decreased mass for faster lock time.

The TANDEMKROSS “Blast Shield” Magazine Disconnect promotes proper magazine alignment for consistent and reliable feeding while protecting the hammer and sear from debris and build up; making for easy maintenance.

The "Ultimate" Trigger upgrade is a MUST-HAVE for rimfire competition, small game hunting or anyone looking for a high-performance trigger system in their Ruger® Mark IV™.

This Kit Contains:

  • Flat-faced, skeletonized design for better control
  • Textured trigger face offers no-slip grip in any condition
  • 100% adjustable for pre- and post-travel
“Thunder” Hammer and “Lightning” Sear
  • Safely and reliably reduces trigger pull weight
  • Provides consistently clean and crisp trigger break
  • American-made and guaranteed for life
  • Allows for safe removal of the magazine disconnect
  • Facilitates proper magazine alignment
  • Shields the sear and hammer from debris, boosting performance

The “Ultimate” Trigger Kit for Ruger® Mark IV™ is designed to install easily and offers an unmatched boost in performance and reliability! 

Upgrade your Ruger® Mark IV™ with the “Ultimate” Trigger Kit today and be ready to take on any type of rimfire action—great for competitive or recreational shooting!

Support Models:
  • Ruger® Mark IV™ Standard
  • Ruger® Mark IV™ Hunter
  • Ruger® Mark IV™ Target
  • Ruger® Mark IV™ Competition
  • Ruger® Mark IV™ Tactical

Already have the [TK] “Victory” Trigger? Find all the other internals components in the “Blast Pack” for Ruger® Mark IV™ & 22/45™

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 www.P65Warnings.ca.gov.

5 Stars
Ultimate trigger kit for Ruger MK IV IV
Bought this kit for my Ruger target pistol, watched the video for install a couple of times and went to work.I pulled the gun apart and installed the kit and could not get the trigger to disengage from the sear. After reinstalling the kit a few more times and decided to call Tandemkross. I spoke to a rep named Tyler and he stated trying to help me. After 3 more calls back to him he asked me if he could call me back and in a couple of hrs and we talked again.When we spoke I could not believe what he said to me. He told me that they created the problem I was having and then they found the solution to fix it.They sent the new parts out that day and this gun shoots like never before.Tandemkross kits are the best that I have ever used and the people that work there are as dedicated as anybody I have ever worked with in my life!!! I would also like to thank the owners of Tandemkross for the culture that you have created at your company.Tandemkross will always be the first place I look for any kits or parts for my guns.
Did you find this helpful?  23 of 23 Found Helpful
Reviewed by:  from NJ. on 6/18/2021
4 Stars
Idaho 83341
Great product but no instructions. Used trigger instal video and hammer/sear video to figure it out. Trigger video was good. Hammer/sear not as good. Installation of sear spring and sear out of focus and took me a while to figure out. I had good response from tech dept and once I got it assembled it worked very well. I won’t order a part again unless they have a good assembly video.
Did you find this helpful?  16 of 19 Found Helpful
Reviewed by:  from Kimberly. on 6/5/2021
5 Stars
Trigger Kit for Mark IV
This kit increased my accuracy by unbelievable amount. Very high quality parts and the best customer service I have ever had.
Did you find this helpful?  9 of 9 Found Helpful
Reviewed by:  from Montpelier. on 11/3/2021
5 Stars
Quality product
Beautifully machined kit installed without any issues. End product is a pretty amazing trigger.
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from MYERSTOWN. on 3/16/2022
2 Stars
Ultimate Trigger Kit
Original parts sent did not work , told to use trigger for 22/45 which works but trigger reset is hit and miss with no further adjustment remaing. Seems like wasted money.
Did you find this helpful?  1 of 4 Found Helpful
Reviewed by:  from Denton. on 11/3/2021

Customers who bought this also bought:

Titan Extended Magazine Release for Ruger® MKIV™
Average Rating(40)
In Stock
Cornerstone Safety Thumb Ledge for Ruger® Mark IV™
Average Rating(19)
In Stock
Fiber Optic Front Sight for Ruger® Mark IV™ & 22/45™
Average Rating(86)
Out of Stock

Recently Viewed Items

Browse By Category