SIG Sauer M400-Sentry Romeo5/Foxtrot-MSR 5.56 NATO 16" 30-Round Rifle

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.

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 Seuer’s motion-activated MOTAC™ design. The Romeo5 GenII is IPX7 waterproof rated, and its fully-multi-coated 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 1250 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 the shooting position.

• 6-position Magpul MOE-SL black stock
• Romeo5 GenII red dot, Foxtrot-MSR full size light and vertical foregrip
• Fully ambidextrous controls (safety, charging handle, bolt catch and release)
• Free-floating M-LOK forend
• Three M-LOK rail covers
• Cold hammer forged chrome/moly steel barrel
• 1/2"-28 tpi tapered shoulder threads
• SIG flash hider-compensator
• Black anodized receiver
• Reduced angle grip
• SIG 2-stage Matchlite™ duo trigger
• Low profile gas block with mid-length operating system
• Forward assist
• One 30-round polymer AR-15 magazine included
• Caliber: 5.56 NATO
• Twist rate: 1:7"
• Barrel length: 16"
• Dimensions: 36.5"L x 2.8"W x 9.3"H
• Collapsed length: 33.25"
• Weight: 8 lbs.