SIG Sauer M400 Tread 5.56 NATO 16" Rifle 30rd - Concrete Gray

The SIG Sauer M400 Tread delivers military-grade reliability in a versatile platform built for serious shooters. This 5.56 NATO rifle combines proven direct impingement operation with modern features that perform under pressure. The distinctive Concrete Gray Cerakote finish provides superior corrosion resistance while maintaining a professional appearance.

What Makes This Different

The M400 Tread stands apart from budget AR-15s through SIG's commitment to manufacturing precision and quality control standards. Each rifle undergoes factory testing to ensure consistent performance, while the free-floating M-LOK handguard enhances accuracy potential compared to standard carbine-length systems. The mid-length gas system reduces felt recoil and improves reliability over carbine-length alternatives.

Key Features

• 16-inch stainless steel barrel with 1:7 twist rate for optimal bullet stabilization
• Free-floating 13.5-inch M-LOK handguard with integrated QD sling attachment points
• SIG Sauer Romeo5 red dot optic ready with co-witness iron sights
• Magpul MOE SL-K collapsible stock with multiple length of pull positions
• Enhanced trigger group with crisp break and positive reset
• Ambidextrous safety selector for left and right-handed operation
• Concrete Gray Cerakote finish rated for 2,400+ hours salt spray resistance

Field performance demonstrates consistent sub-2 MOA accuracy with quality ammunition, making this rifle suitable for precision applications beyond typical patrol rifle requirements. The mid-length gas system cycles reliably with both 55-grain and 77-grain loads, while the chrome-lined bore extends barrel life during high-volume training sessions. Law enforcement agencies and competitive shooters appreciate the consistent lockup and smooth cycling under rapid fire conditions.

Technical Specs

• Caliber: 5.56 NATO/.223 Remington
• Barrel Length: 16 inches, stainless steel construction
• Overall Length: 32.5-35.5 inches (stock collapsed/extended)
• Weight: 6.85 pounds unloaded
• Magazine Capacity: 30 rounds (one included)
• Twist Rate: 1:7 inches
• Gas System: Mid-length with adjustable gas block
• Handguard: 13.5-inch free-floating M-LOK aluminum
• Finish: Concrete Gray Cerakote over aluminum receivers
• Country of Origin: United States

SIG Sauer's reputation for manufacturing excellence translates into a rifle that maintains zero through temperature extremes and continues functioning when others fail. The M400 Tread represents the intersection of proven design and modern manufacturing capabilities, delivering consistent performance that justifies the investment.