Sig Sauer M400 5.56 / .223 Rem 16 Barrel 30-Rounds w/ Romeo5 Gen II Compact Optic Foxtrot-MSR Flashlight

Overview

Sig Sauer M400 Features The Sig Sauer M400 uses a direct-impingement operating system that promotes consistent cycling predictable recoil and smooth handling. Its refined design helps the tactical AR-15 maintain accuracy supported by the two-stage Matchlite Duo trigger for clean and controlled breaks. The chrome-moly steel barrel and Sig flash hider contribute to durability and steady muzzle performance. This package includes premium accessories such as the 1250-lumen Foxtrot-MSR Full Size flashlight for high-output illumination and the Sig Sauer Romeo5 Gen II Compact Red Dot Sight offering a crisp 2 MOA dot at 1x magnification. Combined with a Magpul MOE SL stock reduced-angle grip and M-LOK handguard the setup provides an ergonomic adaptable platform suitable for a variety of shooting applications. With an alloy-steel receiver ambidextrous safety and practical rail system the M400 delivers a complete field-ready configuration. Sig Sauer M400 Specifications Manufacturer: Sig Sauer Model: M400 Caliber: 5.56 NATO Action: Semi-Auto Operating System: Direct Impingement Capacity: 30+1 Barrel Length: 16 Barrel Finish: Black FNC Barrel Material: Chrome Moly Steel Barrel Description: Threaded Muzzle: Sig Flash Hider Twist: 1:7 Thread Pattern: 1/2x28 Receiver Material: Alloy Steel Receiver Finish: Black Anodized Receiver Description: Picatinny Rail Stock Material: Synthetic Stock Description: Magpul MOE SL Stock Finish: Black Grips: Reduced Angle Handguards: M-LOK Sights: None Optic Description: Sig Sauer Romeo5 Gen II Compact Red Dot 2 MOA dot 1x Flashlight: Foxtrot-MSR Full Size 1250 lumens Magazine Type: AR-15 Safety: Ambidextrous OAL: 33.25-36.50 Height: 9.30 Width: 2.80 Weight: 8 lbs