Sig Sauer, MCX, Rattler LT, SBR, 300 Blackout, Black (RMCX-300B-6B-LT-SBR)

The SIG SAUER MCX Rattler LT SBR in .300 Blackout is a compact, hard-hitting platform engineered for superior performance in confined environments. Built around a 6.75″ cold hammer forged barrel, the Rattler LT is optimized for suppressed and unsuppressed use, delivering reliable function and excellent ballistic performance with subsonic or supersonic ammunition.

Featuring SIG SAUER’s proven MCX gas piston system, this semi-automatic short-barreled rifle runs cleaner and cooler than traditional direct-impingement rifles. The anodized black finish, ambidextrous safety controls, and folding stock make the Rattler LT highly adaptable for both left- and right-handed shooters while maintaining maximum maneuverability.

The MCX Rattler LT includes SIG SAUER grips, a 30-round magazine, and a robust monolithic upper designed for durability and modularity. Its ultra-compact footprint makes it an ideal choice for home defense, professional use, vehicle deployment, or suppressed shooting setups.

Available at City Arsenal, the SIG SAUER MCX Rattler LT SBR is a top-tier option for shooters seeking elite performance in a compact .300 Blackout platform.