The Geissele Automatics Super Modular Rail MK8 (brand part no. 05-286S) is Geissele’s ultra-modular M-LOK handguard, measuring 15 inches and finished in desert dirt aluminum. It was among the first Geissele rails to adopt Magpul’s M-LOK technology, giving builders full modularity while maintaining a strong, rigid platform. Maximum venting at the lower 45-degree quadrants improves heat dissipation and dramatically cuts overall weight, and M-LOK slots run at the 3, 6, and 9 o’clock positions along with the upper 45-degree quadrants, letting shooters tailor accessory placement to their exact needs on an AR handguard platform.

Key Specifications

• Measures 15 inches in length for extended rail real estate.
• Finished in desert dirt aluminum (DDC).
• Uses M-LOK slots at the 3, 6, and 9 o’clock positions plus the upper 45-degree quadrants.
• Features maximum venting at the lower 45-degree quadrants for heat dissipation and weight savings.
• Was one of the first Geissele rails to use Magpul M-LOK technology.

Frequently Asked Questions

What color is this handguard? It is finished in Geissele’s desert dirt (DDC) aluminum tone.

What mounting slots does this rail use? M-LOK slots at the 3, 6, and 9 o’clock positions plus the upper 45-degree quadrants.

Buy the Geissele Super Modular Rail MK8, 15-inch

Order this Geissele MK8 rail from our Lubbock, Texas gun shop for fast, direct shipping to complete your build.