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Geissele MK8 Super Modular Rail M-LOK – Multiple Options


Available Options:

Geissele MK8 Super Modular Rail MK8 M-LOK

The Geissele MK8 Super Modular Rail is one of the first rails that utilizes the Magpul M-LOK technology. They are created to give the user full modularity while maintaining a strong and rigid platform. The lower 45 quadrants has maximum venting and creates a maximum heat dissipation and also dramatically reduces the rail’s overall weight. Utilizing Magpul’s M-LOK technology at the 3, 6, and 9 o’clock positions, as well as the upper 45° quadrants. The SMR MK8 is both versatile and modular, allowing the user to tailor their platform to his or her unique needs.

The rail features Geissele’s proprietary 2.25” long barrel nut, which increases the surface contact where the rail interfaces with the receiver and creates a platform that can be trusted to be straight and true the entire length of the free float rail. This increases accuracy and zero repeatability during disassembly and reassembly when performing maintenance.


Height 2.3″
Color Black


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




Inner Diameter 1.35″
Outer Diameter 2.11″
SMR MK8 9.3” Weight 8.4 oz (10.3 oz w/ barrel nut)
SMR MK8 13.5″ Weight 10.8 oz (13.1 oz w/ barrel nut)
SMR MK8 15″ Weight 12.4 oz (14.3 oz w/ barrel nut)


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