SIG SAUER M400-Sentry 5.56mm NATO 16in 30rd Semi-Auto Rifle w/ Romeo5 Gen II & Foxtrot-MSR Full Size Light (RM400-SDI-16B-R5FX)

The M400-Sentry offers a ready-to-go solution for the most discerning shooters, combining the proven capabilities of the M400-SDI X platform with the multi-purpose functionality of the Romeo5 GenII red dot, Foxtrot-MSR Full Size Light and a vertical foregrip. This combination of standardized features makes the M400-Sentry an out-of-the-box solution for home/personal defense, advanced training, or recreational shooting.

Like other rifles in the series, the M400-Sentry was developed based on the direct input of professional instructors at SIG SAUER Academy. Their decades of combined experience and personal knowledge ensure that all M400 rifles are designed to meet the highest standards of reliability and performance. Adding to the advanced capabilities of the M400 platform is the pre-installed Romeo5 GenII red dot, Foxtrot-MSR Full Size Light, and vertical foregrip. With its 1x aiming solution and crisp 1 MOA dot, the Romeo5 GenII provides over 40,000 hours of estimated runtime compliments of SIG SAUER's motion-activated MOTAC design.

The Romeo5 GenII is IPX7 waterproof rated, and its fully multicoated lenses ensure visibility in all environments. Top mount illumination controls provide ease of use by both left and right-handed shooters. For added visibility in low-light conditions, the Foxtrot-MSR Full Size Light with its 1,250 Lumens and 33,000 Candela, clearly illuminates targets while maintaining ease of use and accessibility. The M400-Sentry is also furnished with a vertical foregrip on the free-floating handguard, enabling greater control of the rifle regardless of the shooting position.