Sig RM400SDI16BR5FX M400 Sentry Pkg 5.56 NATO 30+1 16" Threaded BBL, Black Anod Pic Rail Alloy Steel Rcvr, M-LOK Handguard, 6 Pos Magpul SL Black Stock, Reduced Angle Grip, Foxtrot-MSR Full Size, Romeo5 Gen II Compact Red Dot Sight,Tactical Rifles

Overview

The Sig Sauer M400 Sentry package is a direct-impingement 5.56 NATO semi-automatic rifle built for reliability and modularity. It features a 16-inch threaded chrome-moly steel barrel with a black FNC finish and a 1:7-inch twist. The rifle is built on a black anodized alloy steel receiver with an M-LOK handguard and includes a two-stage Matchlite Duo trigger and ambidextrous safety controls. The package is rounded out with a 6-position Magpul MOE-SL stock, a reduced-angle pistol grip, and rail covers. Designed as an out-of-the-box tactical solution, the Sentry package includes a Sig Sauer ROMEO5 Gen II 2 MOA red dot sight with motion-activated MOTAC technology, a FOXTROT-MSR full-size weapon light delivering 1,250 lumens, and a vertical foregrip. The rifle ships with a 30-round polymer magazine and utilizes a Sig flash hider on the muzzle.

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