Sig Sauer RM400556N16BFORGE10 M400 Forge 5.56 NATO 10+1 16″ Black Anodized Alloy Receiver w/Picatinny Rail, M-LOK Handguard, Magpul SL-K Black Polymer Stock, Black Polymer Grip, Sig ROMEO MSR Gen II R

Description

The Sig Sauer M400 is a semi-auto in .223 REM/5.56 NATO with a 16" barrel, a 1:7 twist and 10-round capacity plus one chambered.

A carbine-length barrel keeps the firearm maneuverable, trading some velocity for handling. That is the standard twist for this cartridge, and it stabilizes the bullet weights most factory ammunition is loaded with. It comes with optics ready sights.

The .223 REM is commonly chosen for varmints, predators and target work. Cheap, widely available and light on recoil, which makes it an easy cartridge to shoot well.

This is a serialized firearm. It ships to a licensed dealer near you rather than to your door, and you complete the transfer there with a Form 4473 and a background check. State and local rules govern what can be shipped where, so check yours before ordering – and if you are unsure, ask us first.