SKU: GEI05-430P
The Geissele 10" Super Mod Mk4 Fed is a free-floating modular rifle rail system purpose-built to FBI contract specifications. This 10-inch M-LOK compatible handguard combines the strength and modularity operators demand with integrated M1913 Picatinny rail sections at the 3, 6, and 9 o'clock positions, giving shooters a versatile mounting platform for optics, lights, and accessories without sacrificing ergonomics or accuracy.
The Super Mod Mk4 Fed design emphasizes real-world functionality. The elongated Picatinny section on the 6 o'clock (bottom) position accommodates full-length rail-mounted systems—a practical consideration for shooters who run vertical foregrips, bipods, or tactical lights in demanding environments. The 10-inch length strikes a balance between sight radius and maneuverability, making this rail suitable for mid-length AR platforms used in patrol, tactical training, and precision rifle applications. At 1.06 lbs, the rail maintains a lightweight profile without compromising rigidity, critical for maintaining zero during sustained fire.
This rail serves law enforcement agencies, military units, and serious AR builders who require proven, combat-tested hardware. The federal contract pedigree signals durability and dimensional consistency—specs that matter when mission reliability depends on repeatable performance. The M-LOK slot pattern provides modern flexibility for accessory mounting while maintaining structural integrity across the full 10-inch length.
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