Sightmark M-Spec M1 FMS 1x 3 MOA Red Dot – Flat Dark Earth

The Sightmark M-Spec M1 FMS is a compact reflex sight designed for versatile use on shotguns, pistols and AR-platform rifles. It ships with a low-profile mount for handguns and shotguns and a riser mount for AR-style platforms. The optic features a durable aluminum housing with a steel protective shield and is rated waterproof, shockproof and fog proof for reliable field performance. Power comes from a single CR1632 battery, with exceptionally low power consumption and a 12-hour auto shutoff to conserve battery life.

Key Specifications

• The magnification is 1x for true reflex viewing.
• The objective measures 21 mm x 15 mm for a compact footprint.
• The dot size is 3 MOA for a precise aiming point.
• The reticle is a 3 MOA red dot for quick target acquisition.
• The unit weight is 1.50 oz for minimal added mass.
• The battery type is a CR1632 with a published life of 300–30,000 hours depending on brightness settings.
• Adjustments are 1 MOA per click for windage and elevation.
• Environmental proofs include waterproof, shockproof, and fog proof construction.
• The finish is Flat Dark Earth for a subdued appearance.
• The overall length is 1.73″ for compact mounting options.

The M-Spec M1 FMS balances compact size, durable construction and practical features—ambidextrous digital controls, multiple brightness levels and a protective steel shield—making it a straightforward choice for shooters who need a reliable reflex sight for range work, competition or general-purpose carry with minimal bulk. Its combination of low weight and adaptable mounting options helps integrate the optic across platforms while maintaining a simple, usable aiming solution.

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