The Sig Sauer M400 Tread Coil V2 in 5.56 NATO (MPN RM400-16B-TRD-V2-COIL) pairs a 16-inch barrel rifled at a 1:8-inch twist with a factory-mounted Romeo5 red dot optic in the distinctive Coil Cerakote pattern. Sig Sauer fits the rifle with an adjustable stock and ambidextrous controls for the safety selector. The rifle ships with one 30-round magazine and weighs about 9.8 pounds shipping. Among AR-pattern rifles in the AR rifles category, the M400 Tread Coil V2 favors shooters who want a ready-to-run, optic-equipped 5.56 rifle with a distinctive factory finish.

Key Specifications

• Chambered in .223 Rem/5.56 NATO with a 1:8-inch rate of twist.
• Features a 16-inch barrel.
• Ships with a factory-mounted Romeo5 red dot optic.
• Includes one 30-round magazine.
• Feeds from a detachable magazine with a 30-round capacity.
• Rides on an adjustable stock.
• Controls are ambidextrous for the safety selector.
• Finished in the distinctive Coil Cerakote pattern.
• Ships at approximately 9.8 pounds.

Frequently Asked Questions

Does this rifle include an optic? Yes, a factory-mounted Romeo5 red dot sight.

How many magazines are included? One 30-round magazine ships with the rifle.

Is the stock adjustable? Yes, the rifle rides on an adjustable stock.

Buy the Sig Sauer M400 Tread Coil V2 5.56 NATO Rifle

A ready-to-run, optic-equipped 5.56 rifle in a distinctive factory finish is exactly what the M400 Tread Coil V2 delivers. As soon as it’s ready to ship, order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.