The Geissele Automatics 15" Super Modular Rail MK4 M-LOK is an ultra-lightweight handguard designed for AR-15 rifles. It features integrated short M1913 picatinny rail sections at the fore of the rail in the 3, 6, and 9 o'clock positions, providing maximum venting for heat dissipation while maintaining a strong and rigid platform. The SMR MK4 utilizes Magpul's M-LOK technology at various positions, including the upper 45 quadrants, allowing for versatile and modular customization. The proprietary 2.25" long barrel nut increases surface contact with the receiver, enhancing accuracy and zero repeatability during maintenance. Ideal for range time and training, this handguard showcases Geissele's reputation for innovation and quality.

Key Features:
- Manufacturer: Geissele Automatics
- Model: Super Modular Rail MK4
- Product Type: Handguard
- Mounting System: M-LOK
- Weight: 15.1 oz
- Length: 15"
- Material: Aluminum
- Unique Features: Integrated Picatinny Rail Sections, Proprietary Barrel Nut
- What's In The Box: Includes Barrel Nut (Wrench Sold Separately)