The M400 Sentry offers a ready-to-go solution, combining the M400-SDI X platform with the multi-purpose functionality of the ROMEO5 GENII red dot and the Foxtrot-MSR Full Size Light. The M400-Sentry is furnished with a vertical foregrip on the free-floating handguard, enabling greater control of the rifle regardless the shooting position. The ROMEO5 GENII red dot with its 1x aiming solution and crisp 2 MOA dot, 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. 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. Includes three M-LOK rail covers and a 30rd polymer magazine.
| FireArm |
yes |
| Safety |
Ambidextrous |
| Action |
Semi-Auto |
| Weight Range |
8 lbs to 8.99 lbs |
| Barrel Description |
Threaded |
| Trigger |
Sig Two-Stage Matchlite Duo |
| Muzzle |
Sig Flash Hider-Compensator |
| Receiver Material |
Alloy Steel |
| Sights |
None |
| Stock Description |
6 Position Magpul SL |
| Stock Finish Group |
Black |
| Metal Finish Group |
Blued/Black |
| Barrel Length |
16" |
| Twist |
1:7" |
| Barrel Length Range |
16" to 16.99" |
| Capacity |
30+1 |
| OAL |
33.25"-36.50" |
| Caliber |
5.56 NATO |
| Weight |
8 lbs |