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Best Seller Vortex Optics Sport Cantilever 30 Mm Ring Lower 1/3 Co-witness Cm-304 Instant 30% Discount [4PGXlKfe]

$16.99 $54.99 -69%

Provides extra rail room for rear Back Up Iron Sights (BUIS) when using the StrikeFire red dot along with the VMX-3T magnifier. The cantilever ring will move the StrikeFire forward about one inch.Note: Provides lower 1/3 co-witness mounting height of

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Best Seller Vortex Optics Sport Cantilever 30 Mm Ring Lower 1/3 Co-witness Cm-304 Instant 30% Discount [4PGXlKfe]

Provides extra rail room for rear Back Up Iron Sights (BUIS) when using the StrikeFire red dot along with the VMX-3T magnifier. The cantilever ring will move the StrikeFire forward about one inch.

Note: Provides lower 1/3 co-witness mounting height of 40 mm. Will work with most 30 mm red dot sights.

Outside Diameter (inches): 2.4 - 2.6 inches
Outside Diameter (mm): 62-66 mm
Weight: 6.7 oz

What Our Customers Say

January 16, 2026

Absolutely no complaints!

It’s a very solid and impressive gadget.

- Lleu Y..

January 16, 2026

Absolutely no complaints!

It’s a very clever and handy gadget.

- Gwenno R..

January 16, 2026

Absolutely no complaints!

It's a very sleek and capable device.

- Odessa M..

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