Product Features & Specifications

Sig Sauer RM400SDI16BR5FX M400 Sentry Pkg 5.56 NATO 30+1 16" Threaded Barrel, Black Anodized Picatinny Rail Alloy Steel Receiver, M-LOK Handguard, 6 Pos Magpul SL Black Stock, Reduced Angle Grip, Foxtrot-MSR Full Size, Romeo5 Gen II Compact Red Dot Sight

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.

Brand	Sig Sauer
Series	Sentry Pkg
Model	M400
Caliber	5.56 NATO
Barrel Length Range	16" to 16.99"
Operating System	Direct Impingement
Stock Finish Group	Black
Capacity	30+1
Stock Material	Synthetic
Action	Semi-Auto
OAL	33.25"-36.50"
Sights	None
Barrel Finish	Black FNC
Barrel Material	Chrome Moly Steel
Muzzle	Sig Flash Hider-Compensator
Twist	1:7"
Receiver Description	Picatinny Rail
Magazine Type	AR-15
Grips	Reduced Angle
Handguards	M-LOK
Optic Description	Foxtrot-MSR Full Size
Height	9.30"
Receiver Material	Alloy Steel
Safety	Ambidextrous
Thread Pattern	1 / 2"x28
Width	2.80"
Stock Description	Magpul SL
Barrel Description	Threaded
Barrel Length	16"
Max Capacity	30
Receiver Finish	Black Anodized
Trigger	Sig Two-Stage Matchlite Duo
Weight	8 lbs
SKU	179055
UPC	798681716128
MPN	RM400SDI16BR5FX