54 mm HKey Picatinny section

Many Heckler & Koch weapons or handguards come with HKey slots, H&K’s exclusive interface, similar to KeyMod but not compatible with KeyMod hardware.

Users wishing to mount accessories to their HKey interface need to either use HKey accessories which are scarce, expensive and not necessarily the best quality around, or mount Picatinny sections like this on their weapon, making it compatible with Picatinny accessories.

To mount these sections to your HKey interface, align the screws with the circle parts of two keyholes, push in, push forward and torque down the screws to 5Nm (44.2 inch lbs).

Available in black and RAL8000, H&K’s interpretation of FDE.