Nikko Stirling Zerolok Ring and Base 1 in. Medium Howa 1100 / Ruger American Rimfire

ZERO-LOK mounts go straight onto the action and eliminate play between action and scope, preventing zero shift. These mounts are made of CNC-machine high-grade aluminum with a matte black finish.

Features:

• Fits Howa 1100, Ruger American and firearms with the same profile
• CNC-machined from high-grade aluminum
• Goes straight onto action
• Design prevents shifting of zero
• Eliminates chance of loose connection