The Forward Controls Design TGF Winter version (enlarged opening) is machined from 7075 aluminum. The TGF uses a front set screw (1/16 allen wrench required for install) and a standard trigger guard roll pin in the rear. TGF is designed for use with TDP spec forged lower receivers, and fills the gap forward of the pistol grip, between the trigger guard "ears". All the sharp edges and corners have been removed. TGF also features an angled front end to facilitate rocking the magazine into the magazine well. In so doing, the design opens up the magazine well slightly for those that use the rock into mag well technique. For those that don't, the angle takes nothing away from the way they're used to inserting magazines, straight into the magazine well. TGF's design will not allow the trigger finger to be pinched if the user's trigger finger happens to be on the bottom of the trigger guard.