Quickly Adapt to any Mission with a MK4 Federal Super Modular Rail

Adaptability and modularity are why the MK4 Super Modular Rail is the same rail used to fulfill contracts for the Federal Bureau of Investigations. Designed to meet the needs of operators and civilian shooters alike, the MK4 Federal Super Modular Rail features a full length integrated M1913 Picatinny rail on the top and an extended Picatinny rail at the 6 o'clock position. Slightly shorter Picatinny rails and M-Lok slots are located at the 3 o'clock and 9 o'clock positions. Additional M-Lok slots are located on the 45 degree upper quadrants. Weight reduction and heat dissipation are accomplished with generous vent openings while maintaining a strong and rigid platform. With reduced weight and optimal modularity, the MK4 Federal Super Modular Rail is adaptable for any mission.

Geissele MK4 Federal Super Modular Rail Specifications and Features

• Geissele Automatics Item Number: 05-430ODG
• AR-15/M4 Handguard
• Free Float Design
• Machined from 7000 Series Aluminum
• Full Length M1913 Picatinny Rail at 12 O'clock
• Extended M1913 Picatinny Rail at 6 O'clock
• Short Length M1913 Picatinny Rail at 3 and 9 o'clock
• M-LOK Slots
• Includes Barrel Nut
• Length: 10"
• Inner Diameter: 1.35"
• Outer Diameter: 2.11"
• Weight: 10.2 oz (11.8 oz with Barrel Nut)
• Type 3 Hardcoat Anodized Finish
• Color: OD Green

Fits:

• Mil-Spec M4/AR-15 Upper Receivers

Note:
Designed to work with Mil-Spec upper receivers. The compatibility with billet receiver sets is unknown.
Geissele barrel nut wrench must be used for proper install (not included).