TANDEMKROSS MarkPRO Extended Magazine Bumpers – Ruger Mark IV 22/45, 2-Pack
The TANDEMKROSS MarkPRO Extended Magazine Bumpers 1926N0237BLK1 offer a simple, affordable upgrade for Ruger Mark IV 22/45 owners who want more positive magazine seating, better grip, and easier magazine handling.
Designed for competition shooters and recreational rimfire enthusiasts, these oversized magazine base pads feature textured Zytel polymer construction with extended gripping surfaces that make magazines easier to seat and remove.
Whether practicing at the range, shooting Steel Challenge, or customizing your Ruger Mark IV 22/45, MarkPRO bumpers are a practical addition to your pistol.
Improved Magazine Handling & Positive Seating
Factory flush-fitting magazine base pads offer limited gripping surface. The MarkPRO design adds a larger contact area that makes seating a magazine easier, particularly during repetitive reloads and competition shooting.
Extended side grips also provide additional purchase when removing a magazine from the pistol.
- Oversized Base Pad: Larger gripping surface for more positive magazine seating.
- Textured Zytel Polymer: Strong, durable material designed for repeated use.
- Extended Side Grips: Additional purchase when removing magazines.
- Drop-In Design: Installs on compatible factory magazine bodies without adhesive or permanent modification.
- Two Bumpers Included: Upgrade two magazines with one package.
- Made in USA: Backed by TANDEMKROSS's lifetime product guarantee.
Ruger Mark IV 22/45 Magazine Compatibility
The MarkPRO bumpers are designed for compatible factory-pattern magazines used in the following Ruger pistols:
- Ruger Mark IV 22/45
- Ruger Mark IV 22/45 Lite
- Ruger Mark IV 22/45 Tactical
- Ruger Mark III 22/45 and 22/45 Lite
- Ruger Mark II 22/45
The extended base pad improves external handling without increasing magazine ammunition capacity. Each package contains two replacement bumpers.
Build a Better Ruger Mark IV with Premium TANDEMKROSS Upgrades
The MarkPRO bumper is an excellent starting point, but the Ruger Mark IV platform offers substantial opportunities for additional customization. Pete's Pillars carries premium TANDEMKROSS components for shooters seeking improved ergonomics, controls, sights, and competition functionality.
Step Up to Volquartsen Competition Components
For shooters looking beyond external controls and magazine accessories, Volquartsen offers some of the most respected premium upgrades in the Ruger Mark IV ecosystem.
Pete's Pillars is an authorized Volquartsen dealer, offering precision-machined components designed for demanding rimfire enthusiasts and competition shooters.
- Volquartsen Mark IV Accurizing Kit – VC4AK – One of the most substantial premium upgrades available for the Mark IV. The complete trigger-system kit features precision-machined internal components, an adjustable target trigger, and an approximately 2.25 lb trigger pull for a cleaner, more consistent shooting experience.
- Volquartsen Competition Bolt – VC4BT-B – A premium CNC-machined bolt assembly featuring an integrated extended bolt racker, Exact Edge extractor, and SureStrike firing pin. A high-end option for shooters building a more extensively upgraded Ruger Mark Series pistol.
Whether you're starting with simple magazine improvements or building a dedicated rimfire competition pistol, TANDEMKROSS and Volquartsen offer complementary upgrade paths at different price points.
Add a Premium Red Dot Sight
A quality red dot sight is another worthwhile investment for Ruger Mark IV owners interested in precision target shooting and rimfire competition.
Pete's Pillars carries optics from respected manufacturers, including Athlon, Holosun, and Leupold.
- Holosun HS507C X2 Reflex Sight – A premium open reflex optic featuring selectable reticles and shake-awake technology. A strong option for an appropriately mounted competition rimfire pistol.
- Athlon Midas TSR1 Red Dot – 403014 – A compact open reflex sight with a 3 MOA dot, motion activation, and up to 50,000 hours of battery life at the specified setting.
For additional premium optic choices, including different reticle styles and mounting configurations, explore our Red Dot Sights collection.
Mount Your Optic with TANDEMKROSS Shadow Mount V2.0
The TANDEMKROSS Shadow Mount V2.0 – TK02N0340BLK1 provides a versatile optics mounting solution for compatible Ruger Mark Series pistols.
Its multi-pattern mounting system supports a variety of popular reflex optics, including selected Holosun models, without requiring a conventional Picatinny mounting rail. Select the appropriate mounting pattern and hardware for your specific optic.
TANDEMKROSS MarkPRO Product Specifications
- Manufacturer: TANDEMKROSS
- Product: MarkPRO Extended Magazine Bumper
- MPN: 1926N0237BLK1
- UPC: 769498483145
- Color: Black
- Platform: Ruger Mark IV 22/45, Mark III 22/45, Mark II 22/45
- Material: Textured Zytel-Based Polymer
- Design: Oversized Magazine Base Pad with Extended Side Grips
- Installation: Replacement Magazine Base Pad
- Magazine Capacity Increase: None
- Package Quantity: Two Magazine Bumpers
- Country of Manufacture: USA
- Manufacturer Warranty: Lifetime Guarantee
Complete Your Ruger Mark IV with Pete's Pillars
From affordable magazine accessories to premium Volquartsen trigger systems, competition bolts, charging handles, and red dot optics, Pete's Pillars offers components for every stage of your Ruger Mark IV build.
Explore our Ruger Mark IV Parts & Upgrades for additional accessories from TANDEMKROSS, Volquartsen, and other trusted manufacturers.
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