The MCX Virtus Patrol from Sig Sauer is engineered for adaptability, accuracy and longevity. Its cold hammer-forged 16" barrel is user-changeable and offers the utmost in mission-specific flexibility. The internal recoil system reduces recoil and a compact platform. To enhance accuracy, the MCX Virtus features Sig's Matchlite Duo two-stage match trigger for crisp, clean feel. It also has free-floating M-Lok handguard and a 5-position telescoping folding stock. This model is chambered in 223/5.56 NATO and has Stealth gray metal finish.