The B5 Systems M-LOK Handguard (brand part number HMM-1367) is a midlength, two-piece handguard built for AR-platform carbines running M-LOK accessory slots. Constructed from durable composite material with a built-in stamped aluminum heat shield, it keeps hand contact away from barrel heat during sustained strings of fire while shaving weight compared to a full aluminum rail. The two-piece design fits both round and triangle handguard retaining caps, making it a straightforward drop-in swap on most existing carbine and midlength gas system uppers. At roughly 7 inches long, it’s sized for the midlength gas system builders most often run on 16-inch barrels.

Key Specifications

• Measures approximately 7 inches long, sized for midlength gas system builds.
• Built from durable composite material for a lightweight, impact-resistant handguard.
• Includes a built-in stamped aluminum heat shield for added heat protection.
• Fits both round and triangle handguard retaining caps for broad compatibility.
• Built with M-LOK accessory slots for direct mounting of lights, grips, and other accessories.
• Constructed as a two-piece handguard for straightforward installation.

Frequently Asked Questions

Will this fit my existing handguard cap? Yes, it fits both round and triangle handguard retaining caps.

What protects my hand from barrel heat? A built-in stamped aluminum heat shield under the composite shell.

What gas system length is this built for? A midlength gas system, at approximately 7 inches long.

Buy the B5 Systems M-LOK Handguard – Midlength, Black, Two-Piece

Cut weight without giving up heat protection or M-LOK real estate. Order it from our B5 Systems lineup, part of our gun accessories and parts selection, at our Lubbock, Texas gun shop for fast, direct shipping.