SIGMCX RATTLER-LT .300 BLK, 6.75IN, SBR, BLK

The SIG MCX Rattler‑LT in .300 Blackout compresses the proven MCX platform into an extremely compact 6.75″ SBR that’s engineered for close‑quarters speed and reliable performance. Chambered in .300 BLK for excellent short‑barrel ballistics with subsonic and supersonic loads, this semi‑automatic Rattler‑LT delivers controllable recoil and rapid follow‑ups from a minimal footprint — ideal for vehicle crews, CQB, security, and applications where maximum maneuverability is required. The package features an optics‑ready top rail, short M‑LOK handguard for lights and lasers, a threaded muzzle to accept brakes or short devices, and ergonomic, ambidextrous controls for intuitive manipulation. Confirm and list the exact stock/brace configuration and included magazine capacity for your SKU — accessories and magazines may vary by package.