The SMAI RDM Picatinny Rail in the H21 S5 version is designed to elevate optical and red dot sights by an additional 21 mm. The profile height is tailored to optimize the sightline and ensure compatibility with red dot sights like the Holosun HS510C, providing a setup height of 57 mm. The rail features 5 locking slots and is made entirely of durable structural materials to maintain the point of aim reliably. The black protective coating shields the product from corrosion, abrasion, and mechanical damage under severe operating conditions.

Technical Specifications

Model	SMAI RDM H21 S5
Product Type	Riser rail
Riser Height	21 mm (provides 57 mm for Holosun HS510C)
Number of Slots	5
Mounting Standard	Picatinny / Weaver
Material	Structural aluminum alloy
Finish	Protective anodizing
Color	Black
Compatibility	Holosun HS510C sights, red dot and optical sights with Picatinny mounts
Manufacturer	DAVIKA

Commentary / Comments
The primary advantage of the SMAI RDM H21 S5 rail is providing superior aiming ergonomics without adding unnecessary weight to the platform. The 21 mm rise allows a Holosun HS510C type sight to reach a 57 mm height, creating a highly comfortable sightline for operators in full gear. The 5 standard Picatinny slots provide ample space to securely lock down optics as well as secondary devices like magnifiers or lasers if required.

The structure is engineered to resist intense operational loads and environmental harshness. Precise machining on all contact surfaces eliminates play and preserves zero even through extensive firing cycles.

Target Audience / Suitable For
Military personnel and specialized operators gain a dependable option to elevate their optics to an optimal height, enabling precise firing while wearing personal protective gear, ballistic helmets, and headsets. Raising the sightline accelerates mounting and expands peripheral awareness during close-quarters operations. Rigid locking ensures zero retention regardless of battlefield conditions.
Competitive shooters and firearms instructors can utilize this riser to tailor sight height to personal anatomical preferences and increase first-shot reaction speeds.
Firearm owners upgrading their targeting setups receive a robust, high-precision mounting component from DAVIKA that integrates cleanly into existing systems with no modifications needed.

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Picatinny Rail SMAI RDM H21 S5 Black

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SKU: 8814

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$43

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The item is not eligible for return:

If the item is free of defects, but more than 14 days have passed since the purchase.
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If defects appeared on the item due to the buyer's fault.
If the item is free of defects, but the factory packaging is opened or damaged.
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tel. +380993230988

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Exchange and return of goods is carried out via Nova Poshta:

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