An inexpensive Under Forearm Integrated Rail (UFIR) for the Heckler & Koch MP5 series of submachine guns has been introduced. This accessory rail permits instant installation and removal of a number of different vertical fore grips, as well as flashlights and numerous other accessories.

The UFIR is easily installed onto the underside of the MP5 hand guard using simple hand tools and a small amount of Loctite 262. The four inch accessory rail, and weighs 3.3 ounces. It is machined to MIL-STD-1913 specs, is manufactured from billet 6061 T6 aluminum alloy, and is hard-coat anodized flat black per mil-spec. The UFIR is contoured to fit the MP5 fore grip and provides a solid, and rugged, mounting platform.

Detailed installation instructions and all of the parts required are supplied in the kit.