The Rise Armament RA-905 Handguard (brand part number RA905135BLK) is a 13.5-inch free-floating M-LOK forend built for AR-15 rifles that need a lighter, more rigid rail than the factory setup. Machined from 6061-T6 aluminum and finished in black anodize, it slips onto the upper receiver and locks down without touching the barrel, which keeps harmonics consistent and helps tighten group sizes. An integrated Picatinny top rail carries optics and iron sights while M-LOK slots along the sides and bottom accept lights, grips, and bipods wherever the shooter needs them. The slim, rounded profile stays comfortable in the support hand through long strings of fire.

Key Specifications

• Measures 13.5 inches long, covering a mid-to-rifle-length gas system.
• Machined from 6061-T6 aluminum for a strong, lightweight forend.
• Finished in black anodize to match most AR-15 builds.
• Uses the M-LOK attachment standard along the sides and bottom rail.
• Carries an integrated Picatinny top rail for optics and back-up sights.
• Includes six quick-disconnect sling sockets spaced around the handguard.
• Free-floating design keeps the barrel unobstructed for better accuracy.
• Installs as a slip-on handguard for straightforward setup.
• Slim, rounded center section stays comfortable in the support hand.

Frequently Asked Questions

Does this handguard free-float the barrel? Yes, it mounts to the upper receiver only and never contacts the barrel.

What’s the mounting standard? M-LOK along the sides and bottom, with a Picatinny rail built into the top.

How many sling attachment points does it have? Six quick-disconnect sockets spaced around the handguard.

Buy the Rise Armament RA-905 13.5-Inch M-LOK Handguard

Drop a lighter, free-floating rail onto your AR-15 without sacrificing mounting real estate. Order it from our Rise Armament lineup, part of our AR-15 handguards selection, at our Lubbock, Texas gun shop for fast, direct shipping.