The Midwest Industries 20 Series Handguard (brand part no. MI-21XM) is an 11.5-inch M-LOK free-float rail built for mid-length gas system AR-15s. It installs directly onto a standard GI barrel nut, keeping installation simple for anyone already running a mil-spec upper. The handguard extends past the front sight tower, opening up extra real estate for lights, optics, and other rail-mounted accessories that would otherwise crowd a shorter rail. As part of Midwest Industries’ 20 Series lineup, it’s built to the same standard the company uses across its full line of AR handguards.

Key Specifications

• Measures 11.5 inches in length.
• Uses the M-LOK attachment system for accessories.
• Sized for mid-length gas system AR-15 builds.
• Installs on a standard GI barrel nut (barrel nut not included).
• Extends past the front sight tower, adding extra space for mounting accessories.
• Machined from 6061-T6 aluminum for a strong, lightweight rail.
• Finished in hard anodized black for durability.
• Includes five anti-rotation QD sockets for push-button sling swivels.
• Built as a two-piece design with a monolithic top rail for a continuous sight plane.

Frequently Asked Questions

Is the barrel nut included? No, this handguard installs on a standard GI barrel nut that is sold separately.

What gas system length is this built for? It’s sized for mid-length gas system AR-15 builds.

Buy the Midwest Industries 20 Series M-LOK Handguard, 11.5-Inch, Mid-Length

Extra rail space up front means room for a light, an offset sight, or a bipod without crowding your hand. Browse more AR handguards from Midwest Industries and order it fast from our Lubbock, Texas gun shop.