Product Description
The Geissele Automatics Super Modular Rail (SMR) MK4 M-LOK is an ultra-lightweight, free-float AR-15 handguard designed for strength, rigidity, and modular accessory mounting. Integrated short M1913 Picatinny rail sections at the fore-end (3, 6, and 9 o9clock) and extensive venting help manage heat while keeping weight down. M-LOK slots at the 3, 6, and 9 oclock positions and the upper 45-degree quadrants provide flexible mounting options. The MK4 uses Geisseles proprietary 2.25-inch long barrel nut to increase surface contact with the receiver for reliable alignment, improved accuracy potential, and repeatable zero after maintenance. Barrel nut is included; a Geissele barrel nut wrench is required for installation (sold separately).
Product Highlights
- Free-float SMR MK4 M-LOK handguard built for a strong, rigid AR-15 platform
- Integrated short M1913 Picatinny rail sections at the fore-end (3/6/9 oclock)
- Extensive venting for heat dissipation and reduced overall weight
- M-LOK mounting at 3, 6, and 9 oclock plus upper 45-degree quadrants for modular setups
- Includes Geissele proprietary 2.25-inch barrel nut for enhanced alignment and repeatable zero
Specs
- Brand: Geissele Automatics
- Product Type: Free-float M-LOK handguard / rail (SMR MK4)
- Length: 13.5 in
- Height: 2.4 in
- Inner Diameter: 1.35 in
- Outer Diameter: 2.11 in
- Weight (with hardware): 13.5 oz
- Mounting Interface: M-LOK
- Integrated Rail Sections: Short M1913 Picatinny sections at fore-end (3/6/9 oclock)
- Material: 6061-T6 aluminum
- Finish/Color: Desert Dirt Color (DDC), Type III hardcoat anodized
- Included: Barrel nut and installation hardware (barrel nut wrench sold separately)
- Country of Origin: USA
- UPC: 854014005724
- Manufacturer Part Number: 05-278S
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