Sentry Micro Red Dot Riser Mount | Absolute Co-Witness

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Monstrum Sentry Micro Red Dot Riser Mount

Absolute Co-Witness Mount

The Montrum Sentry Micro Red Dot Riser Mount is a dedicated mounting solution for your micro red dot to your Picatinny mounting platform.


The base mounts to standard picatinny mounting platforms. While the red dot mount attaches directly to the red dot base using either Venom or RMR red dot footprint pattern based on your selection.



Key Features:

• For direct mounting of Venom or RMR standard red dots to Picatinny mounting platforms


• Crafted from 6061 aircraft grade aluminum and hardened steel hardware.

• Single-piece milled to ensure stability and rigidity.


• The mount provides 0.77 inches of rise measured from the base of the mount to the red dot mounting surface, allowing for absolute co-witness with the standard A2 sights.


• The side frame housing provides an added layer of protection for your valuable optic against drops and scrapes

Technical Specifications:

Weight: 4.11 oz
Profile: 0.78 in (Absolute Co Witness Height)
Materials: 6061 Aircraft Grade Aluminum
Width: 1.43 in
Finish: Hard Anodized Black
Warranty: Monstrum stands behind this product and guarantees this product for life. If any manufacturer defects were to arise, simply fill out a warranty form and we will repair or replace this product for free.

ZD30V Mount Compatibility Guide for Venom Footprint

The following are some compatible micro red dots for the ZD30V mount:

Vortex Venom, Vortex Viper

Burris Fastfire 2/3

ADE Advanced Optics RD3-006B/RD3-009/RD3-012/RD3-013

Truglo TRU-TEC

UTG Micro


Docter/Noblex footprint standard Red Dots

Some Venom Footprint Micro Red Dots:

ZD31R Mount Compatibility Guide for RMR Footprint

The following are some compatible micro red dots for the ZD31R mount:

Trijicon RMR

Holosun HS407C, Holosun HS507C, Holosun HS508T

ADE Advanced Optics RD3-019/RD3-020/RD3-023

Swampfox Kingslayer, Swampfox Liberty RMR 1x22, Swampfox Justice RMR 1x27


Other RMR footprint standard Red Dots. (Trijicon SRO will fit but will not offer 100% coverage.)

Some RMR Footprint Micro Red Dots:


ZD30V Venom/Docter/Noblex Footprint Micro Red Dot Mount

ZD31 RMR Footprint Micro Red Dot Mount


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