The Most Cost Effective Way To Mount A Vertical Foregrip, Flashlight Or Other Tactical Accessory. Vertical foregrips and other accessories mounted at the 6 o'clock position on shoulder fired weapons have become prominent in military, law enforcement and civilian arenas. However, not every agency or individual for that matter, can afford or justify the purchase of a forearm assembly surrounded by multiple rails, when all they want to do is add a vertical foregrip or flashlight to the weapon. Over nine years ago, GG&G introduced an inexpensive but mission ready Under Forearm Integrated Rail (UFIR) that permits instant installation and removal of most vertical foregrips, flashlights and numerous other accessories on the AR15/M16 weapon systems. The GG&G UFIR can easily be installed onto the underside of an AR15/M16 forearm, standard or M4, using simple hand tools and a small amount of Loctite 262. The three point mounting system insures a solid, rugged mounting platform. Installation does not require permanent alteration to the forearm. Detailed instructions and all of the parts required are supplied in the kit. The UFIR is manufactured from solid 6061 T6 billet aluminum alloy and is Type III hard-coat anodized matte black per mil-spec to provide combat durability. The GG&G UFIR is four inches long, provides eleven mounting cross lugs and machined to MIL-STD-1913 specifications so as to provide tactical flexibility in accessory mounting. It is lightweight too-at only 1.6 ounces.