The Sig Sauer M400 ROSE is an AR-pattern semi-automatic rifle chambered in 5.56 NATO with a 16-inch black nitride threaded barrel and a black anodized receiver with rose gold controls. It has an M-LOK handguard, ambidextrous controls, and a MagPul stock. The package includes a Sig ROMEO5 Gen II red dot optic. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: M400 ROSE 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Barrel Length: 16 in 
• Color/Finish: Black Anodized / Rose Gold Controls 
   

Detailed Features 

• 16-inch black nitride threaded barrel 
• M-LOK handguard 
• Ambidextrous controls 
• MagPul furniture 
• Sig ROMEO5 Gen II red dot optic included

Owners of the Sig Sauer M400 ROSE tend to highlight the overall package value, given that the Romeo5 Gen II optic is included. The rose gold control accents are a distinguishing aesthetic choice that the target buyer tends to appreciate, though some AR buyers find them divisive. The M-LOK handguard and ambidextrous controls are seen as practical and well-executed additions.

The M400 platform is generally regarded as reliable and well-built. The black nitride threaded barrel gets consistent praise for finish durability. Trigger feel is acceptable out of the box and follows standard AR-pattern quality expectations. Accuracy with 5.56 NATO ammunition at common distances is reported as consistent.

The common criticism is the price premium over comparable AR-pattern rifles that do not include an optic, with some owners feeling the Romeo5 Gen II could be sourced separately for less. The ambidextrous controls and MagPul furniture add practical value that offsets some of that concern. The ROSE's niche appeal means strong resale interest among its intended audience.