Unlike every other firearm on the market, the SIG MCX was built for optimum performance with the 300BLK cartridge and a suppressor. The outcome is a firearm with superior suppression capability and enhanced reliability with both supersonic and subsonic loads A two-position gas block makes the transition from subsonic to supersonic as fast as flipping the lever. Changing between 300BLK and 5.56 NATO is as simple as swapping barrels and magazines in a matter of minutes. Converting to 7.62x39mm simply requires barrel, magazine, as well as an additional bolt change. Each SIG MCX features an aluminum KeyMod handguard, AR-style lower controls and utilizes polymer magazines. A revolutionary recoil system does not require a buffer tube, allowing for side-folding stocks. A picatinny top rail allows for the mounting of lights or optics. The aluminum forend allows for rail sections to be added where they are needed, permitting the attachment of accessories. The lower receiver offers familiar AR-style controls. Completely ambidextrous controls include the safety, magazine release and charging handle. Specifications: Aluminum KeyMod handguard Carbon Steel Barrel Ambidextrous Controls Folding and Collapsing 3-Position Stock: To make the package as compact as possible, the MCX PATROL is equipped with a folding and collapsible 3-position stock.
Conceived for the demands of the Special Operations community, the MCX VIRTUS from SIG SAUER is engineered for adaptability, accuracy and longevity. Cold hammer-forged 16†barrels are user-changeable and available in 5.56 NATO and 300 BLK, offering the utmost in mission-specific flexibility. SIG’s proven internal recoil system offers reduced recoil and a compact platform. To enhance accuracy, the MCX VIRTUS features the new Matchlite™ Duo trigger for crisp, clean feel. Free-floating M-LOK handguards are available in four lengths. Ambidextrous, AR-style controls and a folding and adjustable stock enable the MCX VIRTUS Patrol to be tailored to any shooter. Available in Stealth Gray and FDE and built with the highest-quality components, the MCX VIRTUS is the apex predator of the carbine world.