American Defense RMSc Co-Witness Lightweight QD Mount

The American Defense Lightweight TR co-witness mount is built around the RMSc footprint. It uses quick-detach attachment, a black anodized finish, and a compact lightweight base. Co-witness height is the primary difference between this version and the lower-one-third TR mount.

RMSc footprint compatibility keeps the mount focused on sights that use that interface. The quick-detach base allows the optic to remain installed on the mount when the assembly is removed from the rail. Compared with the offset TR model, this version keeps the sight upright on the primary mounting plane instead of rotating it 45 degrees.

This is the Lightweight TR option for an RMSc-pattern sight that needs co-witness placement. The lower-one-third and 45-degree versions serve different height or orientation needs while staying within the same general mounting family. Browse more red-dot mounts in optics and rangefinders.

• RMSc footprint
• Co-witness height
• Lightweight quick-detach base
• Black anodized finish