The Geissele 9.3" Super Modular Rail MK16 M-LOK® - DDC is a professional-grade free float rail system engineered for durability, precision, and modular flexibility. Originally developed for the USASOC URG-I program, the MK16 rail has earned its place in some of the most elite military applications.

Manufactured from 7000 Series Aluminum, the MK16 offers the optimal balance of strength and weight, while its Type 3 Hardcoat Anodized Desert Dirt Color (DDC) finish ensures lasting durability under harsh conditions.

The rail secures to your upper receiver using Geissele’s updated 2.25” barrel nut, offering unmatched rigidity and alignment. Anti-rotation tabs and twin set screws guarantee that the handguard stays locked down, even under high-stress use.

Featuring M1913 Picatinny rail sections at 12 o’clock and M-LOK® compatibility on every quadrant, this rail delivers full modularity for modern mission-ready builds. Whether for tactical applications, competition, or advanced personal builds, the MK16 is a battle-proven solution with heritage and performance built in.

Height	2.39"
Color	Desert Dirt Color (DDC)
Material	7000 Series Aluminum
Finish	Type 3 Hardcoat Anodize
Length	9.3"
Inner Diameter	1.26"
Outer Diameter (DAQ*)	1.59"
Weight	10.1 oz (11.74 oz w/ barrel nut)
NSN	1005-01-682-4190

NOTE: IF THIS IS YOUR FIRST TIME PURCHASING A GEISSELE AUTOMATICS RAIL, YOU WILL NEED TO PURCHASE A BARREL NUT WRENCH IN ORDER TO PROPERLY INSTALL THE RAIL. CLICK HERE TO PURCHASE

NOTE: These rails are designed to work with Mil-Spec M4 upper receivers. The compatibility with billet receiver sets is unknown.

Click here to review Geissele's DDC (Desert Dirt Color) disclaimer before purchasing.