The Spuhr 4mm ISMS Spacer is a compact, precision-machined accessory designed to integrate seamlessly with the Ideal Scope Mount System. Using the official A-0001 interface, this spacer adds a measured 0.160" of height, helping shooters fine-tune optic and accessory placement without compromising rigidity or alignment. Its matte black finish blends cleanly with modern mounts and rings, maintaining a low-profile look on the rifle.

This spacer is intended for mounting accessories on ISMS interfaces where a small, repeatable height change is needed for better eye alignment, clearance, or ergonomics. Whether you are setting up a dedicated range rifle, a competition rig, or a hunting optic, the 4mm ISMS Spacer offers a simple way to refine your setup while keeping the system robust and consistent. Spuhr’s reputation for careful engineering and durable construction is reflected in the spacer’s clean machining and reliable fit.

• Manufacturer: Spuhr
• Model: 4mm ISMS Spacer
• Finish Color: Matte Black
• Unique Features: Designed for Spuhr Ideal Scope Mount System interfaces
• Finish: Matte Black