SIG Sauer M400-SDI X 5.56 NATO 30+1 Blue/Black Rifle | Add to Cart

Specifications

Action—-Semi-Automatic

Finish—-Blue/Black

Sights—-Standard Sights

Weight—-6.9 pounds

Capacity—-30+1

Grip Safety—-No

Optic Ready—-Yes

Barrel Length—-16 inches

Manual Safety—-Yes

Overall Length—-32.5 inches

Caliber / Gauge—-5.56 NATO

Threaded Barrel—-Yes

Magazines Included—-1

Ambidextrous Safety—-Yes

WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV

Product Overview

The SIG Sauer M400-SDI X is a 5.56 NATO semi-automatic rifle developed with input from professional instructors at the SIG Sauer Academy. Its free-floating handguard uses a dual-clamp steel locking system to reduce deflection and maintain consistent accuracy while providing accessory attachment points on all four sides. Fully ambidextrous controls, including the M400 lower receiver bolt catch and release, support efficient operation from either shoulder. A mid-length gas system, low-profile gas block, SIG 2-Stage Matchlite Duo flat trigger, and Magpul SL stock complete the performance-focused configuration.

Key Features

• 16-inch threaded barrel supports muzzle-device and suppressor installation
• Free-floating M-LOK handguard with rigid dual-clamp steel locking system helps preserve accuracy when accessories are mounted
• Fully ambidextrous controls accommodate left- and right-handed shooters
• SIG 2-Stage Matchlite Duo trigger provides a crisp 4.5 to 6.5 pound pull
• Mid-length gas system and low-profile gas block promote smooth cycling
• Flat-top receiver is optic ready for a compatible red dot sight or scope mount

The SIG Sauer M400-SDI X combines ambidextrous controls, a match-style trigger, and a rigid free-floating handguard in a versatile 5.56 NATO rifle.