Bolt Keeper Extended Bolt Stop for Ruger® Mark IV 22/45


$26.99 - $31.99
(24 reviews) Write a Review
0.30 LBS
Adding to cart… The item has been added

As requested by popular demand, we are excited to release the new “Bolt Keeper” Extended Bolt Stop for Ruger® Mark IV™ 22/45™!

At a glance:
  • Aggressive step geometry for maximum traction
  • More purchase than factory lever
  • Machine cut locking feature for secure installation 
Tired of the difficulty of manipulating the stock bolt stop lever? The TandemKross “Bolt Keeper” Extended Bolt Stop for Ruger® Mark IV™ 22/45™ facilitates effortless locking and releasing the bolt by providing an extended, wider, lever. The horizontal step cut design ensures positive thumb engagement to better maintain grip and traction in all environments.
Bolt Keeper for Ruger Mark IV 22/45 step-cut
The extended bolt stop extends taller than the stock bolt stop lever, offering an ergonomic - easy to manipulate upgrade! This part is a must-have for shooters of all ages and hands of all sizes to increase the control and simplify the use of their pistol.
The unique key-hole locking feature will keep the bolt stop firmly in place when removing the grips for maintenance. 
Bolt Keeper for Ruger Mark IV 22/45 key hole
Made of lightweight aircraft grade aluminum for lifetime of use, the “Bolt Keeper” Extended Bolt Stop for Ruger® Mark IV™ 22/45™ will install in minutes and bring your favorite race-gun to the next level! 
Whether you are a competition shooter, weekend plinker, hunter or simply looking to improve the ergonomics and functionality of your 22/45, look no further than the new, “Bolt Keeper” Extended Bolt Stop for Ruger® Mark IV™ 22/45™!
Designed for  Ruger® Mark IV™ 22/45™ and "Kraken" Aluminum Frames only
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

24 Reviews

  • 5
    Mark IV extended bolt stop

    Posted by Scott on 21st Aug 2022

    I have these on all of my 22/45's. They work great and are easy to install. You can't go wrong getting yourself an awesome upgrade...

  • 5
    Bolt Stop

    Posted by Jody on 9th Aug 2022

    Nice upgrade. Not a drastic change, but gives you a very nice advantage to the somewhat difficult stock bolt stop. Super easy to install, Love it.

  • 5
    Ruger 22/45 bolt stop

    Posted by Chris S on 20th Jul 2022

    Great addition to my 22/45. Well made product, not cheap stamped item. Super easy install.

  • 5
    Easy to install and use

    Posted by Mitch on 6th Jul 2022

    Super easy to install and makes it much easier to unlock the bolt, as someone with larger hands. All gives those with weaker hands more leverage

  • 5
    Bolt Stop

    Posted by Joseph on 27th Jun 2022

    Finally, a bolt stop I can reach without contorting my grip.

  • 5
    Bolt Keeper

    Posted by Cardo on 3rd Jun 2022

    One word, Awesome!

  • 5
    Big upgrade

    Posted by Michael Labus on 27th May 2022

    Since I bought my Ruger MKIV 22/45, I haven t been able to release the bolt using the bolt stop until I installed the Bolt Keeper. It s now a breeze. I bought the black one to match my gun. Highly recommend.

  • 5
    Bolt Keeper

    Posted by Gary Koenig on 21st May 2022

    The "Bolt Keeper" is exactly what I needed to hold my thumb. It is very well constructed and it was a breeze to install and looks great, especially in the red color. Thanks, gary

  • 5
    TK's Bolt Keeper

    Posted by Ted on 12th May 2022

    The Ext. Bolt Stop step design makes "thumbing up for bolt lock" much easier than the steel OEM (can keep my grip in place). The Bolt Release "thumbing down" shelf is also an easier function to perform...Nice!! Had to hone some material from my MkIV Cocobolo wood grips to fit the stop's inside profile, but otherwise would have taken just 3 minutes to install!