MarkPRO Extended Magazine Bumper for Ruger® Mark IV (2-Pack)


(30 reviews) Write a Review
0.50 LBS
Adding to cart… The item has been added


Ruger® MKIV™ Magazine Bumper Instructions


At a glance:

  • Oversized bumper improves consistency of positive magazine seating
  • Lateral grip pulls make pulling from magazine well easy
  • Zytel® based bumpers offer the ultimate strength and durability

*Includes two base pads per order.*

The Ruger® MKIV™ has quickly become a favorite rimfire pistol among competitive shooters, but the flush surface on the magazine base pads can be challenging for competitors, making it harder to consistently seat the magazine properly and causing unnecessary delays.

The TANDEMKROSS MarkPRO Extended Magazine Bumpers for Ruger® Mark IV™ offers an oversized, textured Zytel® grip, allowing the user to easily bump the magazine into place for positive, consistent magazine seatings. Should the magazine get stuck, raised sides on the extended base pad allow for easy pulling from the magazine well for faster magazine changes.

These drop-in MKIV™ accessories attach to the bottom of the factory magazine without any glue or gunsmithing - installing in minutes! This simple Mark IV™ upgrade is ideal for competitive speed shooters or any Ruger® MKIV™ owner looking to improve the firearm’s reliability.

Supported Models:

  • Ruger® MKIV™ Target
  • Ruger® MKIV™ Hunter
  • Ruger® MKIV™ Competition
  • Ruger® MKIV™ Tactical


*Please note* This part is designed for the MKIV (standard style grip frame only)


Don't forget, all TANDEMKROSS products are Made in the USA and come with a LIFETIME guarantee!

30 Reviews

  • 5

    Posted by Doug on 3rd Sep 2023

    Great products. You need to watch video on how to put them on. They work great

  • 5
    MarkPRO Extended Magazine Bumper

    Posted by Brian Tinkler on 1st Sep 2023

    I've come to rely on Tandemkross for upgrades to my Browning Buckmark. So when I acquired a Ruger MKIV fist thing I did was look to Tandemkross. The Tandemkross extended magazine bumpers work perfectly in my MKIV. Better magazine engagement compared to the flush Ruger factory bumper.

  • 5

    Posted by David on 25th Aug 2022

    I have purchased six of these bumpers and have them on my Ruger Mark 4 competition they were easy to install and have worked great I've had no lock-up problems as the other people have indicated, great product my only issue was I received the 2245 version not the standard bumper halfway through the order but customer service took care of me promptly.

  • 5

    Posted by Jeff on 2nd Jun 2022

    These bumpers were a great addition to my Ruger Target.

  • 5

    Posted by Robert Ardis on 23rd May 2022

    Have these on all my Ruger MKIV and Browning Buckmark magazines. Makes a good magazine great!!!

  • 5
    Mark ProMag Bumper

    Posted by Bob on 13th Apr 2022

    I love these bumpers and after an initial order of 2, I ordered 4 more for my MK4 hunter. The bumpers work great and compliment my Hogue grips. My only complaint is the price, but I liked them enough to buy 6.

  • 5

    Posted by Greg on 24th Feb 2022

    Seems that Tandemkross hits a homerun in every at bat! Great product.

  • 5
    Mag bumper

    Posted by Mark on 17th Feb 2022

    Great product and easy to install

  • 5
    Mark IV bumper

    Posted by Jeff on 10th Feb 2022

    I put these on my Mark IV Hunter w/ competition grips - they fit perfectly and give me a bit more grip surface for my left hand. Also put a set on my SW22 Victory, and they're great.