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 Automatics MK4 Federal Super Modular Rail Specifications and Features

• Geissele Item Number 05-430B
• 6061-T6 Aluminum Free Float Rail
• Type 3 Hard Coat Anodized
• 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 Compatible
• Length 10"
• Inner Diameter 1.35"
• Out Diameter 2.11"
• Weight 10.2 oz (11.8 oz with Barrel Nut
• Geissele MK4-8 Style Barrel Nut
• Black Finish

Fits:
Mil-Spec M4 Upper Receivers

Barrel Nut Wrench and Gas Block Not Included