The SIG Sauer LE M400 is an AR-15 pattern, gas-operated semi-automatic rifle built around a 16 inch 5.56 NATO barrel and a sight-ready platform. It features SIG’s M4 hand guard configuration and is designed for reliable handling, iron-sight use, and straightforward mounting of an optic.
Key Features
16 inch 5.56 NATO AR-15 pattern platform for versatile performance
Gas-operated semi-automatic direct impingement action
Sight-ready configuration with iron sights
Standard AR manual selector safety controls
Optic ready using the standard top rail
If you want a durable 16 inch 5.56 NATO SIG Sauer AR platform built for sights and optics, the LE M400 is a practical choice.
