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Vortex Precision QR Extended Cantilever 30mm Mount (2" Offset)

BH #VOCM404 • MFR #CM-404
4 reviews
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Vortex Precision QR Extended Cantilever 30mm Mount (2" Offset)
Key Features
  • For 30mm Maintubes
  • 2" Forward Offset
  • Works with Flattop AR-15 Rifles
  • Holds Center at 1.49"
Give your telescopic sight proper support with Vortex's Precision QR Extended Cantilever 30mm Mount. This dual quick release device is designed for AR-15 flattop rifles and will hold your scope's 30mm maintube at a 2" forward offset. The mount is compatible with Picatinny/Weaver style rails and holds your scope's optical axis at a height of 1.49" above the base. It is made of lightweight and durable 6061-T6 aluminum and covered with a matte black anodized finish.
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$259.99
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Vortex CM-404 Overview

Give your telescopic sight proper support with Vortex's Precision QR Extended Cantilever 30mm Mount. This dual quick release device is designed for AR-15 flattop rifles and will hold your scope's 30mm maintube at a 2" forward offset. The mount is compatible with Picatinny/Weaver style rails and holds your scope's optical axis at a height of 1.49" above the base. It is made of lightweight and durable 6061-T6 aluminum and covered with a matte black anodized finish.

UPC: 875874007048

Vortex CM-404 Specs

Maintube Diameter
30 mm
Materials
Aluminum
Height
1.49" / 37.85 mm
Dimensions
5.9" / 150.6 mm
Weight
8.9 oz / 252.3 g
Packaging Info
Package Weight
0.735 lb
Box Dimensions (LxWxH)
7.7 x 3.3 x 2.25"

Vortex CM-404 Reviews

This thing is a rock

By Hal
Rated 5 out of 5
Date: 2026-08-30

I know QRs catch a lot of negativity, but this one goes on and off in a flash and always returns amazingly well to the EXACT position. I keep it and the rail clean and protected to make it stay that way. Love the QD functionality.

Vortex quick-release mount

By David
Rated 5 out of 5
Date: 2018-07-20

What a super high quality, beautifully made scope mount. A little pricey but I love it, great craftsmanship.

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