M400-SENTRY | An Out-of-the-Box Training Solution

M400-SDI X Now Available with SIG SAUER’s Most Popular Accessories

The new M400-SENTRY expands the capabilities of SIG SAUER’s proven SDI-X rifle lineup by offering an out-of-the-box training solution packaged with some of today’s most popular accessories. By combining a ROMEO5 GEN II ELITE red dot sight, FOXTROT-MSR Full Size light, and a vertical foregrip with the highly capable M400 SDI-X platform, this new configuration is perfectly suited to meet the demands of today’s professional and recreational shooters.

At the core of the M400-SENTRY is the rifle’s low profile gas block and proven mid-length gas system that offers reliable function over extended use while reducing the weight of the total platform. Additionally, the rifle was designed to accommodate the widest variety of shooters through its fully ambidextrous controls and telescoping, 6-position Magpul MOE SL stock.

The enhanced features found on M400 platform were derived from the direct input of professional instructors at SIG SAUER Academy. Their decades of combined experience and training have made the M400 a truly versatile firearm, ready to excel in any environment.

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Pre-Installed Accessories

ROMEO5 Red Dot Sight

The ROMEO5 GEN II ELITE provides a durable 1x aiming solution, offering a crisp 2 MOA dot coupled with SIG SAUER’s motion-activated MOTAC™ design. This red dot is IPX7 waterproof rated and offers a generous 40,000 hours of estimated runtime. The red dot’s fully multi-coated optics and parallax-free optical design along with top mount illumination controls make it a must-have accessory item.

FOXTROT-MSR Full Size Light & Vertical Grip

For added visibility, the M400-SENTRY is also furnished with a FOXTROT-MSR Full Size light to aide shooters in low-light conditions. Providing 1,350 Lumens and 33,000 Candela in a sleek aluminum housing, the push-button light has been optimized for personal defense platforms. Also included is the vertical foregrip for enhanced control.

Whether searching for a primary rifle for home defense or simply to elevate your personal training, the new M400-SENTRY offers a robust platform with all the advantages needed to succeed wherever and whenever needed.