Sig Sauer MCX Rattler LT Pistol 5.56 NATO 7.75in 30rd Black

The Sig Sauer MCX Rattler LT is a compact AR-platform pistol configured for .223 Rem/5.56 NATO use. This configuration is fitted with a short cold-hammer-forged barrel, an M-LOK handguard and a SIG folding pistol brace. Controls are ambidextrous and the gas system is adjustable to support suppressed and unsuppressed use. The firearm ships with one removable 30-round magazine.

Key Specifications

• Chambering is .223 Rem/5.56 NATO as listed in the product attributes.
• The barrel measures 7.75 inches as indicated in the provided specifications.
• The action is Semi-Auto per the product data.
• Magazine capacity is 30 rounds with 1 x 30-round removable magazine included.
• The frame is constructed of aluminum (alloy frame listed in attributes).
• Finish is listed as black in the product attributes.
• The handguard uses M-LOK attachment points for accessories.
• The muzzle is equipped with a SIG QD SR Flash Hider (suppressor-ready QD style).
• Optic mounting is a Picatinny footprint per the specifications.
• The firearm includes ambidextrous controls and an adjustable gas piston for suppressed or unsuppressed operation.

Compact, modular, and built on the MCX platform, the Rattler LT offers a short overall profile with features tailored for versatile field use and accessory integration. Its M-LOK handguard and Picatinny optic footprint support a wide range of optics and attachments while the folding pistol brace keeps the package compact for storage and transport. The MCX Rattler LT is a straightforward, capability-focused option for shooters looking for a modern, configurable AR-style pistol platform.