Sig Sauer MCX, 300 Blackout, 6.75" Barrel, 1-30rd Magazine, Short Barreled Rifle

The Sig Sauer MCX 300 Blackout SBR delivers professional-grade performance in an ultra-compact package designed for today’s high-tempo shooters. Featuring a 6.75" cold hammer-forged barrel, fully modular architecture, and the proven MCX piston system, this platform excels in confined environments, suppressed configurations, and rapid deployment scenarios. For users seeking compact maneuverability without compromising ballistic capability, the MCX SBR remains one of the most trusted options in the defensive and professional arena. What sets the MCX apart is its purpose-driven engineering. Sig’s short-stroke gas piston system ensures exceptional reliability with subsonic and supersonic ammunition—suppressed or unsuppressed—while running cleaner and cooler than traditional DI setups. The folding stock compatibility, slim handguard, and quick-change barrel system give you a rifle that adapts to any mission profile. Whether employed in low-visibility roles, vehicle operations, or modern home defense layouts, the MCX 300 Blackout SBR delivers confident, consistent performance in every environment.

Specifications:

• Caliber: 300 Blackout
• Barrel Length: 6.75"
• Barrel Type: Cold hammer-forged
• Operating System: Short-stroke gas piston
• Capacity: 30 rounds
• Stock/Brace: SBR configuration (NFA item)
• Handguard: Lightweight modular M-LOK
• Receiver: Aluminum construction
• Overall Design: Compact, reliable, suppressor-ready
• Included: 1× 30-round magazine