SIG Sauer M400 TREAD COIL .223 Remington 5.56 NATO Blue/Black Rifle with ROMEO5 Red Dot Sight

Description

Product Overview

The SIG Sauer M400 TREAD COIL is a semiautomatic modern sporting rifle chambered for both .223 Remington and 5.56 NATO. It combines a 16-inch threaded barrel with a free-float 13-inch M-LOK TREAD handguard, giving shooters a stable platform for accessories and consistent barrel performance. The rifle includes a TREAD Matchlite Duo trigger, ambidextrous controls, a three-prong flash hider, and a six-position Magpul SL-K telescoping stock. A SIG Sauer ROMEO5 red dot sight is mounted at the factory, featuring a 2 MOA aiming dot, ten illumination settings, MOTAC motion-activated illumination, and extended battery life.

Key Features

• ROMEO5 red dot sight provides a clear 2 MOA aiming point with ten illumination settings and MOTAC motion activation.
• Free-float 13-inch M-LOK handguard supports accessory mounting without contacting the barrel.
• TREAD Matchlite Duo trigger provides a refined two-stage trigger pull for controlled, repeatable shots.
• Six-position Magpul SL-K telescoping stock adjusts length of pull for different shooters and equipment.
• Threaded 16-inch barrel accepts compatible muzzle devices and is supplied with a three-prong flash hider.
• Ambidextrous controls improve handling for left- and right-handed shooters.

The SIG Sauer M400 TREAD COIL offers a ready-to-use optic-equipped rifle configuration with adaptable controls and a versatile accessory system.