The Super Sabra Lightning Bow Trigger is designed to replace the standard trigger in IWI Tavor rifles. Once installed"" the Sabra Lightning Bow is adjustable via a set screw that removes the ""slack"" that is inherently found in the trigger mechanism of those rifles. By removing the slack"" the trigger pull is instantly transformed into a feel that is much more familiar to that of an M4 Carbine. Pairing the Sabra Lightning Bow with a Super Sabra Trigger Pack will result in a pull that is truly two stage and has a match grade feel.