Blast Shield Magazine Disconnect for Ruger® Mark IV & 22/45


MSRP: $21.99
(You save $2.00 )
(105 reviews) Write a Review
0.30 LBS
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TANDEMKROSS Ruger MKIV and MKIV 22/45 Blast Shield Installation Instructions

At a glance:
  • Allows for safe removal of the magazine disconnect
  • Facilitates proper magazine alignment
  • Shields sear and hammer from debris, boosting performance
While the Ruger® MKIV™ is already a popular pistol for rimfire shooting sports, even a good gun can be made great! The TANDEMKROSS "Blast Shield" Magazine Disconnect Replacement is an easy upgrade for your Ruger® MKIV™ or MKIV™ 22/45™, allowing for the safe removal of the magazine disconnect and offering other great benefits to boost performance for competitive shooting or weekend plinking.
The unique design of the MKIV™ magazine disconnect replacement not only allows the gun to fire whether or not a magazine is inserted, it also facilitates proper magazine alignment and shields the sear and hammer from debris, boosting the overall performance of your pistol with a simple, drop-in part.
The"Blast Shield" Magazine Disconnect for Ruger® MKIV™ & 22/45™ will work with the Volquartsen sear and disconnector, but was designed to work with the factory hammer.
Upgrade your Ruger® MKIV accessories with the TANDEMKROSS "Blast Shield" Magazine Disconnect Replacement and install performance in your Ruger® MKIV™ and MKIV™22/45™!
Supported Models:
  • Ruger® MKIV™ Standard
  • Ruger® MKIV™ Hunter
  • Ruger® MKIV™ Target
  • Ruger® MKIV™ Competition
  • Ruger® MKIV™ 22/45™
  • Ruger® MKIV™ 22/45™ LITE
  • Ruger® MKIV™ Tactical
  • Ruger® MKIV™22/45™ Tactical

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

105 Reviews

  • 5
    Ruger mark IV blast pack

    Posted by Brian on 11th Sep 2023

    fit and finish is prefect. the first one installed lasted around 10,000 rounds! this is a great value add for the Ruger 22/45 lite. The videos make it very easy to follow, anyone can install these replacement parts.

  • 5

    Posted by Peter Osborne on 9th Aug 2023

    I had already purchased one of these magazine disconnects for my Ruger22/45 LITE. It was easy to install by watching the YouTube video that Tandemkross had produced. So when I purchased my new Ruger Mark IV Hunter it was a no-brainer. Easy ordering and in just a couple days I had the new pistol running the same disconnect.I have purchased quite a few parts for my firearms over the years and highly recommend them. Cheers!

  • 5
    Great Product

    Posted by Paul P on 2nd Aug 2023

    I do a lot of training and instruction. I don t like a magazine safety. Having this device installed allows me or a student to drop the mag, after the bolt locks open, confirm the gun is clear, release the bolt and pull the trigger. I find it simplifies things for me. Your mileage may vary. Be safe, and if you treat all guns like they are loaded you will not have a problem.

  • 5
    it works

    Posted by oldfatjonwick on 20th Jul 2023

    the disconnector rwplacement solves the problem of not being able to fire the gun without the magazine. it qas a medium difficulty replacement because both the cideo and the wrotten instructions are not as clear as they should be.

  • 5
    Great solution to a dumb feature

    Posted by Ryan on 30th Mar 2022

    With the TK blast shield I can now safely clear my weapon and it appears to feed more reliably. Great product!

  • 5

    Posted by Jewel Williams on 3rd Mar 2022

    Great product fit and function very well highly recommended

  • 5
    magazine disconnect

    Posted by Toven on 7th Jan 2022

    easy install work Great

  • 5
    Blast shield

    Posted by John on 8th Nov 2021

    Works as advertised!

  • 5

    Posted by GERALD on 25th Oct 2021

    great device, put one in each of my guns