The Geissele Automatics Super Modular Rail MK16 (brand part no. 05-651B) is a 9.5-inch free float M-LOK handguard built for demanding AR-platform shooters. 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 anodizing in black 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 black.

Buy the Geissele Super Modular Rail MK16 9.5-inch

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.