Sig Sauer MCX SBR Features The MCX SBR uses a short-stroke gas piston system designed to enhance reliability and reduce fouling for consistent function with a variety of 5.56 loads. Its 11.5 barrel balances velocity and handling supporting both close-quarters maneuverability and practical mid-range precision. These characteristics make the compact 556 rifle a capable choice for users seeking a controlled lightweight platform with modern operating behavior. A lightened handguard improves agility while maintaining strength and the folding stock increases storage and transport flexibility. Ambidextrous controls support efficient operation for left- or right-handed shooters and the included QD flash hider is suppressor-ready for future expansion. With its ergonomic grip included magazine and durable IR Cerakote finish the rifle forms a versatile SBR configured for responsive handling across varied conditions. Sig Sauer MCX SBR Specifications Manufacturer: Sig Sauer Model: MCX Type: SBR Caliber: 5.56 NATO Barrel Length: 11.5 Finish: IR Cerakote Flat Dark Earth Handguard: M-LOK Lightened Pattern Stock: Folding Controls: Ambidextrous Trigger: Sig Flatblade Match Muzzle Device: Rocksett QD Flash Hider Grip: Sig Sauer Capacity: 30 Rounds Magazine Included: 1 Finish Type: Anodized Barrel System: Interchangeable