The G&G ETI UFIR can be installed into the vent holes of the lower handguard without removing it from the weapon. In addition, no backing bushing, nut-serts or miscellaneous fastners of any kind are required. The patent pending integral camming attachment system allows the rail to be easily installed and removed with a flat tip screwdriver without any alteration to the handguard.

The ETI UFIR at just over 5 inches long is manufactured from 6061-T6 aluminum alloy and is Type III hard-coat anodized matte black to mil-spec. All steel components are manganese phosphated black. Lightweight at only 1.9oz, the GG&G ETI UFIR provides the end user with a MIL-STD-1913 dovetail on the lower handguard to mount a flashlight, bipod or other ancillary equipment.