This adapter rail can easily be installed onto the underside of an AR15 or 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. Because our handguard rail mount follows the Picatinny Rail (MIL-STD-1913 or NATO's STANAG 2324) standard you will have no problem with accessory compatibility.
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.