Geissele Super Modular MK4 Federal AR-15 Handguard - M-LOK - 10"

The Geissele Automatics Super Modular MK4 Federal AR-15 handguard is the same free float rail built under contract for the Federal Bureau of Investigation, now available for your own build. Built for the M4 carbine and mil-spec AR-15 variants, this 10" handguard delivers the durability and modular mounting that operational use demands.

Features:

• 10" free float design
• M-LOK compatible slots
• Includes proprietary Geissele barrel nut
• 7000-series aluminum construction
• Black hardcoat anodized finish

Integral M1913 rail sections at the muzzle end accommodate lights and bipods, while M-LOK slots along the body keep the rail light without sacrificing strength. The included barrel nut increases surface contact where the rail meets the receiver, holding the platform straight and true so zero repeats reliably after maintenance or a barrel swap. This is the same variant supplied under contract to the Federal Bureau of Investigation.

Founded in 2004 by Bill Geissele in Pennsylvania, Geissele Automatics built its reputation on precision AR-15 triggers before expanding into rail systems and other combat-proven components. The company's Super Modular Rail line has been adopted by U.S. Special Operations Command, reflecting the same engineering rigor Geissele applies across its entire product line.