Sig Sauer MCX Rattler LT .300 AAC Blackout

The Sig Sauer MCX Rattler LT in .300 AAC Blackout is built as a compact, modular pistol platform suitable for close-quarters training and controlled-range applications. The MCX architecture prioritizes compact transport and adaptability while maintaining AR-style ergonomics and controls.

The Rattler LT follows Sig Sauer's MCX design with an aluminum receiver, a piston-driven operating system, and a compact profile intended for maneuverability. Controls are designed for broad user access, and the receiver is optic-ready on a Picatinny rail for common sighting solutions.

Key Specifications

• The action is Semi-Auto.
• The caliber is .300 AAC Blackout.
• The barrel length is 6.75 inches.
• The magazine capacity is 30 rounds.
• The frame material is Aluminum.
• The barrel material is Cold Hammer Forged Steel.
• The finish type is Black Anodized.
• The stock type is Folding Pivoting Contour Brace.
• The firearm includes 1 x 30-Round magazine.
• The trigger is a Flatblade 2-Stage Match design.

State Restrictions: This firearm is not available for sale in California, Illinois, Washington, and Rhode Island.

For buyers seeking a compact, modular .300 AAC Blackout pistol, the Sig Sauer MCX Rattler LT combines MCX platform versatility with a short overall profile and an optic-ready receiver. Consider the Sig Sauer MCX Rattler LT .300 AAC Blackout when looking to buy an MCX pistol for sale online today.

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