Midwest Industries Sig Rattler 5.25-Inch M-Lok Handguard

This M-Lok Handguard from Midwest Industries (brand part no. MI-SIGR-5.25) is a 5.25-inch free-float handguard built specifically for the Sig Sauer Rattler platform. Free-floating means the handguard attaches only to the receiver, not the barrel, so accessories mounted to it don’t touch or stress the barrel itself.

Key Specifications

• Measures 5.25 inches long, sized for the compact Rattler platform.
• Built with a free float design that doesn’t contact the barrel.
• Slotted in the M-Lok pattern for mounting accessories.
• Purpose-built for the Sig Sauer Rattler.
• Sized specifically for the Rattler’s short pistol-length handguard footprint.
• Sold as a single handguard, not bundled with a barrel or upper.
• Compatible with standard M-Lok accessories (rail sections, lights, grips) without proprietary hardware.
• Attaches at the receiver using the platform’s barrel nut mounting interface.
• Built specifically for the MCX Rattler, not a universal MCX-family handguard.

Frequently Asked Questions

Will this fit my rifle? It’s purpose-built for the Sig Sauer Rattler platform specifically.

What does free float mean? The handguard attaches only to the receiver, not the barrel, so mounted accessories don’t touch or stress the barrel.

Buy the Sig Sauer Rattler 5.25-Inch M-Lok Handguard

Outfit your Sig Rattler with this 5.25-inch free-float M-Lok handguard from Midwest Industries. It ships fast from our Lubbock, Texas gun shop, and our AR handguards selection has more handguard options.