The Sig Sauer M400 Tread V2 is a semi-automatic rifle chambered in 5.56x45mm NATO. The 16-inch stainless steel barrel pairs with a mid-length gas system. Capacity is 30 rounds. Weight is 6.5 lbs. Finish is Moss Green Cerakote. UPC is 798681688012. 
 

Key Specifications 

• UPC: 798681688012 
• Action: Semi-Automatic 
• Barrel Length: 16 inches 
• Caliber: 5.56x45mm NATO 
• Capacity: 30 rounds 
• Finish: Moss Green Cerakote 
• Weight: 6.5 lbs 
   

Detailed Features 

 
The free-floating M-LOK handguard improves airflow around the barrel and accepts a wide range of accessories. The SIG Matchlite two-stage trigger has a short first stage followed by a clean break, a noticeable step up from standard mil-spec triggers. The mid-length gas system runs smoother than carbine-length and reduces felt recoil. The MAGPUL SL-K telescoping stock adjusts for different lengths of pull. Ambidextrous safety works for both right- and left-handed shooters.

The Sig Sauer M400 Tread V2 in Moss Green 5.56 NATO draws broadly positive user feedback.

Build quality and cycling reliability are the most consistently praised aspects. The SIG Matchlite two-stage trigger gets specific attention. Users who've shot standard mil-spec triggers notice the improvement. The mid-length gas system is appreciated for its softer impulse, and the M-LOK handguard makes accessory attachment straightforward. The MAGPUL SL-K stock adjusts well for different body sizes.

The Moss Green Cerakote finish is a genuine dividing point. Some buyers specifically choose it for the distinctive look, while others who prefer more conventional black rifles mention they wish a standard-finish option were available. Sig's customer support has a mixed reputation and comes up occasionally.

Value is generally seen as strong for the feature set. Most users consider the M400 Tread V2 a well-equipped mid-range AR-15 with the Matchlite trigger as the standout differentiator.