The Geissele Automatics Super Modular Rail MK16 (brand part no. 05-651S) is a 9.5-inch free float M-LOK handguard built for demanding AR-platform shooters, finished here in desert dirt aluminum. It mounts using the updated Geissele barrel nut design, which is included, giving the rail superior rigidity while remaining straightforward to install. Anti-rotation tabs and set screws keep the rail from shifting even under hard use, and M-LOK slots on every quadrant plus a full-length top rail give shooters room to mount lights, optics, and other accessories. Machined from 7000 series aluminum and finished in Type-3 hardcoat anodizing, this AR handguard is built to hold up under sustained duty or competition use.

Key Specifications

• Measures approximately 9.5 inches in length for a mid-length handguard footprint.
• Uses M-LOK attachment slots on every quadrant for accessory mounting.
• Machined from 7000 series aluminum for a strong, rigid, and relatively light rail.
• Finished in Type-3 hardcoat anodized desert dirt for long-term wear resistance.
• Mounts with the updated Geissele barrel nut, which is included with the rail.
• Anti-rotation tabs and set screws keep the rail from shifting under hard use.
• Includes an integrated M1913 Picatinny top rail for optics or accessory mounting along its full length.

Frequently Asked Questions

Does this handguard include a barrel nut? Yes, the updated Geissele barrel nut is included.

What mounting system does this rail use? It uses M-LOK slots on every quadrant along with a top Picatinny rail.

What color is this handguard? It is finished in Type-3 hardcoat anodized desert dirt.

Buy the Geissele Super Modular Rail MK16 9.5-inch, Desert Dirt

Order this Geissele MK16 rail from our Lubbock, Texas gun shop, and we will get it shipped as soon as it is ready to send.