The Ruger Mark IV Picatinny Scope Rail is the factory-standard mounting solution for getting optics on your Mark IV, Mark III, or 22/45 pistol. If you're running a suppressor-host 22 or setting up a competition gun, this single-piece rail bolts straight into the pre-drilled receiver holes—no gunsmithing required. It's genuine Ruger hardware, which means it fits like it was always meant to be there, because it was: this is what the factory designed these guns to accept.

The 1913 Picatinny mounting standard means you've got huge optic options: red dots, low-power scopes, magnified pistol optics, or even lasers and lights if you're building something weird (we don't judge). One-piece construction is simpler and more rigid than two-piece bases, cutting out a potential failure point and keeping zero rock-solid through the shot string. The finish is black to match your pistol.

Installation is straightforward—the rail comes with three mounting screws and drops right onto any Mark IV, Mark III, or 22/45 with factory receiver drilling. Just make sure your gun is one of those three models; this won't work on Mark I or Mark II pistols. Once it's torqued down, you're ready to bolt on your favorite optic and run.

Key Features

• Factory-original 1913 Picatinny rail for Ruger Mark IV, Mark III, and 22/45 pistols
• Single-piece design for maximum rigidity and zero retention
• Fits only firearms with factory pre-drilled receivers—no modifications needed
• Includes three mounting screws
• Black finish
• Genuine Ruger Factory Accessory

Specifications

Manufacturer	Ruger
Product Type	Picatinny Scope Rail
Design	One-piece
Rail Standard	1913 Picatinny
Finish	Black
Mounting Fasteners Included	Three screws

Frequently Asked Questions

Will this rail fit my Mark I or Mark II pistol?

No. This rail is designed for Mark IV, Mark III, and 22/45 models only. Mark I and Mark II receivers do not have the factory pre-drilled holes required for this rail.

What optics can I mount on this Picatinny rail?

Any optic with a Picatinny (1913-standard) mount will work: red dot sights, low-power pistol scopes, magnified optics, lasers, and lights all attach to the same 1913 interface.

Do I need a gunsmith to install this rail?

No. As long as your Mark IV, Mark III, or 22/45 has the factory pre-drilled receiver holes, installation requires only the three screws included with the rail. No drilling or modifications are necessary.

What's included with the rail?

The rail comes with three mounting screws. You'll need to supply your own optic mount.