Sig Sauer MCX SPEAR-LT .300 AAC Blackout Pistol 9in FDE

The Sig Sauer MCX SPEAR-LT is an AR-style pistol built around the MCX platform for compact, short-barrel performance. It is intended for range use, precision training, and other utility applications where a compact, pistol-configured rifle system is preferred. The SPEAR-LT variant emphasizes reduced thermal signature finishes and a folding, telescoping brace design.

The SPEAR-LT is built on an aluminum alloy receiver with a 9-inch cold hammer-forged carbon steel barrel and a Gen II NiR FDE Cerakote finish. The firearm is optics-ready with a Picatinny footprint and features an M-LOK handguard for accessory mounting. Controls and ergonomics are arranged for modern AR-style handling and interface.

Key Specifications

• The action is Semi-Auto.
• The caliber is .300 AAC Blackout.
• The barrel length is 9 inches.
• The barrel material is Cold hammer-forged carbon steel.
• The twist rate is 1:5.
• The thread pitch is 5/8×24.
• The magazine capacity is 30 rounds.
• The operating system is Gas piston.
• The stock type is Folding pistol brace.
• The receiver finish is Gen II NiR FDE Cerakote.

State restrictions: This firearm is not available for sale or direct shipment to California, Rhode Island, or Washington, and is not for sale to Illinois (PICA).

For buyers seeking a compact .300 AAC Blackout performance package, the Sig Sauer MCX SPEAR-LT pairs a 9″ precision-forged barrel with a compact, optics-ready platform. Buy the Sig Sauer MCX SPEAR-LT .300 AAC Blackout online today for a modern AR-style pistol configuration.