Geissele 13.5" Spr Mod Mk8 Mlok.

The Geissele 13.5" Spr Mod Mk8 M-LOK rail system is a versatile platform designed for operators who require maximum accessory flexibility while maintaining structural integrity. This rail is ideal for AR builders, law enforcement designated marksman rifle setups, and precision-focused shooters who prioritize modularity and lightweight construction.

Constructed by Geissele Automatics, the Mk8 rail integrates Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, allowing for quick reconfiguration of tactical accessories in the field. The 13.5-inch length strikes a balance between handguard space and overall weapon maneuverability, particularly on compact platforms. This design also emphasizes weight management and thermal performance.

The Mk8 rail is compatible with a wide range of industry-standard tactical panels, lights, vertical grips, and accessories, eliminating the need for proprietary rail systems or adapters. Its design is particularly effective for short-barreled rifles (SBRs) and full-length builds, maintaining suitable sight-over-bore distances for close-quarters engagements while supporting optic-mounted accessories.