Ruger Weaver-Style Scope Base Adapter, 4.5″ Black Anodized

The Ruger Weaver-style scope base adapter provides a single-piece mounting platform for installing Weaver-style rings on Ruger Mark I, Mark II, Mark III, Mark IV and 22/45 target pistols. Machined from aluminum and finished with a black anodize, the adapter is designed to accept Weaver-style rings and includes the mounting hardware. This factory Ruger accessory is intended for use with Weaver-style rings and does not fit Ruger-branded scope rings.

Key Specifications

• Compatible models: Mark I, Mark II, Mark III, Mark IV and 22/45.
• Overall length: 4.5 inches.
• Material: Aluminum.
• Finish: Black anodized.
• Mount type: Weaver-style.
• Includes: Three mounting screws.
• Rings included: No.
• Pieces: One piece adapter.

Designed as a straightforward, factory-produced mounting solution, this Ruger scope base adapter gives shooters a stable Weaver footprint for a wide range of ring options. Its one-piece aluminum construction and low profile maintain the pistol's handling while providing a reliable platform for optics and sighting setups used in target and precision applications.