Geissele MK4 Super Modular M-LOK 15" Handguard
Geissele's ultra-lightweight 15" free-float handguard features M-LOK slots, integrated Picatinny rails, and a proprietary 2.25" barrel nut for maximum accuracy and repeatability.
Geissele MK4 Super Modular Rail M-LOK Handguard
The Super Modular Rail (SMR) MK4 represents Geissele's commitment to precision engineering and practical design for the modern AR platform. This 15-inch handguard delivers the balance of lightweight construction and rigid stability that serious shooters demand.
Key Features
Construction & Design
- Machined from 6061-T6 aluminum with black anodized finish
- Extensive venting reduces weight while maintaining structural rigidity
- Free-float design isolates the barrel from handguard harmonics
- Integrated M1913 Picatinny rail sections at 3, 6, and 9 o'clock positions
Modularity & Accessory Mounting
- M-LOK slots at 3, 6, and 9 o'clock positions plus upper 45-degree quadrants
- Compatible with the full range of M-LOK accessories from Magpul and other manufacturers
- Allows you to configure your rifle exactly as you need it
Precision Engineering
- Proprietary 2.25-inch barrel nut increases surface contact with the receiver
- Creates a platform that remains straight and true along the entire rail length
- Ensures consistent zero repeatability through multiple disassembly and reassembly cycles
- Improves overall accuracy and reliability during maintenance
What You Need to Know
The MK4 is a purpose-built handguard for shooters who understand that every ounce and every millimeter matters. Installation requires a Geissele barrel nut wrench (sold separately). Gas block installation is your responsibility and not included.
Features
- height: 2.4 "
- inner diameter: 1.35 "
- outer diameter: 2.11 "
- weight w/ hardware: 15.1oz.
- length 15"
- includes barrel nut (barrel nut wrench sold separately)"
- geissele automatics ar-15 15 super modular rail mk4 m-lok"
