Geissele Automatics MK4 Federal 10in Free-Float M-LOK Handguard 05-430B

Product Description

The Geissele Automatics Super Modular MK4 Federal Rail is a rugged 10-inch free-float handguard engineered for strength, modularity, and M-LOK compatibility. Designed as the same rail used to fulfill Federal Bureau of Investigation (FBI) contracts, it features integrated M1913 Picatinny rail sections at the fore in the 3, 6, and 9 o'clock positions for mission-ready accessory mounting. An elongated bottom (6 o'clock) Picatinny section improves comfort and accessory fitment, while extensive venting promotes heat dissipation and helps reduce overall weight without sacrificing rigidity. M-LOK slots at the 3, 6, and 9 o'clock positions plus the upper 45-degree quadrants provide flexible mounting options while keeping the profile streamlined.

Product Highlights

• FBI-contract MK4 Federal free-float rail built for a strong, rigid, mission-capable platform
• M-LOK mounting surfaces at 3, 6, and 9 o'clock plus upper 45-degree quadrants for versatile accessory placement
• Integrated M1913 Picatinny sections at the fore (3/6/9 o'clock) for lights, lasers, and other rail-mounted accessories
• Elongated 6 o'clock Picatinny section for improved comfort and expanded mounting real estate
• Maximum venting aids heat dissipation while helping keep the rail system lightweight and controllable

Specs

• Manufacturer Part Number: 05-430B
• Model/Series: Super Modular MK4 Federal
• Length: 10 in
• Handguard Type: Free-float
• Mounting Interface: M-LOK
• Rail Standard: M1913 Picatinny (integrated sections at fore in 3/6/9 o'clock positions)
• Color/Finish: Black
• Compatibility: AR-15 / mil-spec upper receivers