Valid from 1 May - 31 October 2025
Valid from 1 May - 31 October 2025
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Valid from 1 May - 31 October 2025
Streamline your AR setup with precision and durability. The Vortex CM-305 Sport Cantilever Ring Mount is designed for shooters who want a clean, reliable mounting solution with absolute co-witness height. At a 37mm center height, this single-ring mount aligns perfectly with standard AR-15 iron sights, allowing for a seamless transition between your optic and backup sights.
Constructed from 6061-T6 aircraft-grade aluminum, this mount delivers the strength and stability needed for demanding conditions, while maintaining a lightweight profile. The cantilever design offers additional forward offset to improve eye relief and proper scope positioning—ideal for compact and low-power optics.
Whether you're outfitting a duty rifle, competition carbine, or home defense setup, the Vortex CM-305 gives you the precision alignment and rock-solid hold you need.
30mm Tube Compatibility – Perfect for red dots and LPVOs with a 30mm body
Absolute Co-Witness Height (37mm) – Aligns exactly with standard AR iron sights
Cantilever Design – Moves the optic forward for better eye relief and mounting flexibility
Durable Construction – Made from lightweight, aircraft-grade aluminum
Picatinny/Weaver Rail Compatible – Mounts securely to standard rail systems
Two-Screw Mounting System – Easy installation and solid zero retention
Tube Size: 30mm
Mount Height: 37mm (Absolute Co-Witness)
Material: 6061-T6 Aluminum
Finish: Hard-Anodized Matte Black
Mount Type: Cantilever – Picatinny/Weaver
Weight: Approx. 6.5 oz
Torque Specs:
Ring Screws: 15 in/lbs
Base Screws: 25–30 in/lbs
When absolute precision matters, the Vortex CM-305 delivers rock-solid performance with a clean co-witness setup—perfect for tactical, defensive, and competitive shooting.
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