The SIG Sauer M400 Tread V2 (SIG Sauer part no. RM40016BTRDV2CA) extends SIG’s popular M400 series to California with a rifle modified to include state-compliant features without sacrificing performance. SIG Sauer fits the M400 Tread-V2-CA with a 16-inch stainless steel barrel and an updated SIG 2-Stage Matchlite DUO trigger with a flat trigger shape for improved accuracy. The Tread Enhanced M-Lok handguard improves control and accessory mounting, while a 3-port muzzle brake tames recoil. A Magpul MOE fixed carbine stock, a CA-compliant grip, an ambidextrous safety and magazine release, and an integrated QD sling mount round out a rifle built for California residents who want a top-of-the-line AR-15.

Key Specifications

• Chambered in 5.56 NATO.
• Barrel length is 16 inches, in stainless steel.
• Rate of twist is 1:8.
• The muzzle uses a 1/2-28 tpi tapered-shoulder thread, fitted with a 3-port muzzle brake.
• The gas system is mid-length direct impingement.
• The trigger is a SIG 2-Stage Matchlite DUO with a flat trigger shape.
• The handguard is the Tread Enhanced M-Lok forend in black alloy.
• The stock is a Magpul MOE fixed carbine stock.
• The safety and magazine release are ambidextrous.
• Magazine capacity is 10+1 rounds, for California compliance.

Frequently Asked Questions

Is this rifle California compliant? Yes, it is built specifically to meet California’s compliance requirements.

What trigger does it use? A SIG 2-Stage Matchlite DUO trigger with a flat shoe.

What muzzle device is installed? A 3-port muzzle brake.

Buy the SIG Sauer M400 Tread V2 5.56 NATO Rifle, 16-inch, CA Compliant, 10-Round

This M400 Tread V2 is built for California shooters browsing our AR rifles category. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.