Tandemkross Ruger Mk Series ''Shadow'' Picatiny Rail-Black

The Tandemkross Shadow Picatinny rail for Ruger Mark series pistols is a purpose-built accessory for shooters who want to mount a red dot or other optic without sacrificing iron sight capability. Built from precision-machined aluminum with a hardcoat anodized finish, this black rail delivers the rigidity and accuracy needed for serious .22 LR pistol shooting—whether you're zeroing at the range, running competition, or just pushing your marksmanship further. Unlike bulky factory alternatives, the Shadow is trimmer and cleaner-looking, designed to complement rather than dominate your pistol's profile.

The eight MIL-STD Picatinny cross-slots give you genuine flexibility in sight positioning, so you can dial in optimal eye relief for your specific optic and shooting style. The underside cutout minimizes the chance of ejected brass interfering with your setup, a detail that matters when you're running strings of fire at speed. Mounting screws are included, and installation is straightforward on factory-drilled and tapped receivers—no gunsmithing required. Because the rail doesn't obstruct your gun's rear sight, you can keep irons intact and swap between optic and iron sight shooting in seconds with a quick-release mount.

This rail fits a wide range of Ruger .22 LR platforms: Mark II and Mark II 22/45 models, Mark III and Mark III 22/45 variants (including the Lite), and the newer Mark IV lineup (Target, Hunter, Competition, and 22/45 Lite). The matte black finish blends seamlessly with most Ruger stocks and slides, keeping your gun looking proportional and purpose-built rather than patched together.

Key Features

• Eight MIL-STD Picatinny slots for flexible optic positioning and eye relief adjustment
• Precision-machined aluminum with hardcoat anodized finish for durability and corrosion resistance
• Trimmer, cleaner profile compared to factory optic rails
• Underside cutout reduces interference from ejected shell casings
• Iron sights remain usable; compatible with quick-release optic mounts for rapid sight switching
• Installation on factory-drilled and tapped receivers requires no gunsmithing
• Mounting screws included
• Matte black finish

Specifications

Frequently Asked Questions

What Ruger Mark pistols does the Shadow rail fit?

The Shadow Picatinny rail is compatible with the following factory-drilled and tapped Ruger .22 LR models: Mark II, Mark II 22/45, Mark III, Mark III 22/45, Mark III 22/45 Lite, Mark IV Target, Mark IV Hunter, Mark IV Competition, and Mark IV 22/45 Lite.

Can I keep my iron sights while using this rail?

Yes. The Shadow rail is designed to allow you to retain your factory iron sights, and it won't interfere with them. With a quick-release mount on your optic, you can switch between shooting with the red dot and using irons in seconds.

What's included with the rail?

The Shadow Picatinny rail comes with mounting screws. Installation is designed for factory-drilled and tapped Ruger receivers—no additional gunsmithing needed.

How many attachment points does this rail have?

The Shadow features eight MIL-STD Picatinny cross-slots, giving you plenty of adjustment options for positioning your optic to suit your eye relief and shooting preference.