Geissele MK16 Super Modular Rail M-LOK

The Geissele MK16 Super Modular Rail was designed with unmatched performance for the most demanding of users. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the MK16 is not only easy to install and maintain, but offers superior rigidity. Anti rotation tabs and set screws ensure that your rail will not rotate, even under the most extreme conditions of use. M1913 Picatinny rail on top and M-LOK slots on every quadrant ensures maximum customization for all your accessories. It is precision machined using 6061-T6 Aluminum due to its strong, rigid and light properties, and is finished in durable Type 3 Hardcoat anodized. The rail is available in lengths 9.3″, 10.5″, 13.5″ and 15″ and in several different finishes.

Instruction Manual


Height 2.39″
Color Black


Material 6061-T6
Finish Type 3 Hardcoat Anodize
Available Lengths 9.3″




Inner Diameter 1.26″
Outer Diameter (DAQ*) 1.59″
SMR MK16 9.3″ Weight 10.1oz (11.74oz w/ barrel nut)
SMR MK16 10.5″ Weight 11oz (12.6oz w/ barrel nut)
SMR MK16 13.5″ Weight 13.4oz (14.9oz w/ barrel nut)
SMR MK16 15″ Weight 14.2oz (15.8oz w/ barrel nut)



More Rifle Parts

Additional information

Weight N/A

Black, Desert Dirt

Rail Length

10.5", 13.5", 15", 9.3"


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