


Product Description
The Geissele Automatics Super Modular MK4 Federal rail is a mission-ready, free-float handguard built for strength, modularity, and hard use. This is the same rail used to fulfill contracts for the Federal Bureau of Investigation (FBI), featuring an M-LOK attachment system for flexible accessory placement and a durable Type III hardcoat anodized finish in Desert Dirt Color (DDC). Precision-machined from 7000-series aluminum, it delivers a rigid platform with a streamlined profile suited to demanding operational and training environments.
Product Highlights
- FBI contract rail design delivering a strong, rigid free-float handguard platform
- M-LOK slots at the 3, 6, and 9 oclock positions for versatile accessory mounting
- Constructed from 7000-series aluminum for high strength-to-weight performance
- Type III hardcoat anodized finish in Desert Dirt Color (DDC) for rugged wear resistance
- Ventilated, modular design to support handling and accessory integration
Specs
- Brand Name: Geissele Automatics
- Product Type: Free-float handguard / modular rail
- Length: 10 in
- Attachment / Mount Type: M-LOK
- Material: 7000-series aluminum
- Finish: Type III hardcoat anodized (DDC / Desert Dirt Color)
- Height: 2.30 in
- Inner Diameter: 1.35 in
- Outer Diameter: 2.11 in
- Weight: 10.2 oz
- Country of Manufacture: USA
- UPC: 817953027912
- Manufacturer Part Number: 05-430S
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