Reptillallc Rmu Mount Reptilia 100269 0.625 In Height 12 Slot

The Reptilia RMU Mount is a precision-machined 12-slot Picatinny riser built for shooters who need their optics higher on the rifle. Developed at the request of military customers, this slim-line mount solves a real problem: bringing lower-1/3 co-witness optics—like EoTech holographic sights, Vortex UH-1, or Sig ROMEO8T—up to a more natural cheek weld and sight line. It's especially valuable if you're running helmet-mounted night vision or simply prefer a more upright, less crouched shooting posture. At 0.625 inches of lift, the RMU gives you the height boost without the bulk of larger risers.

Construction is billet 7075-T6 aluminum with Mil-Spec Type III hard anodized finish—the same material and process you'll find in precision tactical gear. The mount weighs just 109 grams, so it adds minimal mass while delivering serious stiffness. Installation is straightforward: the spring-loaded nitriled steel clamp and mounting bolt lock securely to any M1913 Picatinny rail, and both hardware elements sit flush with the body for a clean, snag-free profile. Made in the USA.

If you're building a rifle for duty, hunting, or precision shooting where cheek weld and sight picture matter, this is the kind of thoughtful, honest accessory that earns its place on your gun. No hype, just a solid riser from a maker who understands how operators actually run optics.

Key Features

• 0.625-inch height boost for lower-1/3 co-witness optics
• Billet 7075-T6 aluminum, Mil-Spec Type III hard anodized
• Spring-loaded steel clamp for secure, tool-free installation
• Flush-mounted hardware prevents snagging
• Compatible with any M1913 Picatinny rail
• 12-slot configuration for flexible optic placement
• Lightweight at 109 grams
• Made in USA

Specifications

Frequently Asked Questions

What optics will the RMU Mount work with?

The RMU Mount is designed specifically for lower-1/3 co-witness optics that benefit from height boost. It's ideal for EoTech holographic sights, Vortex UH-1, and Sig ROMEO8T. As long as your optic mounts to a standard Picatinny rail, the RMU will accept it—the 12-slot design gives you flexibility in fore-and-aft positioning.

Will this work on any rifle with a Picatinny rail?

Yes. The RMU Mount attaches to any M1913 Picatinny rail, whether that's your upper receiver, a hand guard, or a separate rail system. No special adapters needed.

Do I need tools to install the RMU Mount?

No. The spring-loaded clamp and mounting bolt are designed for quick, tool-free installation. Everything you need comes with the mount, and the hardware sits flush so there's nothing to snag or catch.

How much height does this add?

The RMU Mount raises your optic 0.625 inches above the rail. This elevation is enough to bring a lower-1/3 sight picture to a more natural cheek weld, especially useful with night vision or for shooters who prefer an upright stance.