Reptilia Rmu Mount 9 Slot .625" Blk

The Reptilia RMU Mount 9 Slot .625" is a lightweight picatinny rail riser designed to co-witness optics at a higher sight line without sacrificing a clean, snag-free profile. Originally developed for professional operators using helmet-mounted night vision, this fixed-height riser works just as well for shooters who prefer a more upright head position or need to clear larger magnification optics mounted lower on the receiver. At .625 inches of elevation, it bridges the gap between lower-third-mounted optics like the EOTech holographic line, Vortex AMG UH-1, and Sig ROMEO8T, bringing them into true co-witness with iron sights or helmet-borne systems.

Built from 7075-T6 aluminum billet and finished in MIL-SPEC Type III hard anodize, the RMU is engineered to withstand the demands of professional and serious civilian use. The 9-slot configuration gives you mounting flexibility on standard M1913 picatinny rails while keeping overall weight down—at 95 grams, it won't bog down your rifle. The spring-loaded nitrided steel clamp and flush-mounted bolt make installation straightforward; there's no fussy wrench work or exposed hardware to catch slings or body armor. Every edge is designed to stay low and clean, whether you're working in tight spaces or moving hard.

Made in the USA, the RMU Mount reflects the kind of purpose-built thinking that comes from field feedback and real operational constraints. This isn't a universal solution—it's a precision tool for a specific problem: elevating your optic sight line without adding complexity or weight.

Key Features

• Lightweight, billet-machined 7075-T6 aluminum construction weighs just 95 grams
• MIL-SPEC Type III hard anodized finish for corrosion resistance and durability
• 9-slot M1913 picatinny compatible for flexible mounting options
• .625-inch fixed height riser for optimal co-witness with lower-third optics
• Spring-loaded nitrided steel clamp for tool-free installation and secure grip
• Flush-mounted bolt and low-profile design eliminate snag points
• Made in the USA

Specifications

Frequently Asked Questions

What optics work with the Reptilia RMU Mount 9 slot?

The RMU is designed to elevate lower-third-mounted optics like the EOTech holographic line, Vortex Optics AMG UH-1, and Sig Optics ROMEO8T to a higher sight line. If your optic mounts to standard M1913 picatinny rails with a lower-third height, this riser will work for it. Always verify your optic's footprint matches your rail system.

Will this mount work with night vision or helmet-mounted systems?

Yes. The RMU was originally developed at the request of DoD customers specifically to provide proper sight alignment when running helmet-borne night vision or for shooters who prefer a more upright stance with head-mounted systems. The .625-inch elevation brings lower-mounted optics into co-witness height for these applications.

How do I install the Reptilia RMU Mount?

The RMU uses a spring-loaded nitrided steel clamp and mounting bolt that attach directly to any M1913 picatinny rail. No special tools are required—the clamp is designed for hand-tight operation, and the bolt sits flush with the mount body for a snag-free profile.

What does the 9 slot configuration mean?

The 9-slot design allows you to position the mount at different points along your picatinny rail for flexible optic placement while maintaining the standard M1913 interface. Other configurations (12 and 6 slot) are available if you need different rail coverage.