The Ghost Angel 3.0 connector incorporates Anit Flinch engineering to create a smooth no-load trigger pull. This means you can shoot your pistol more accurately and faster because there is no load before the shot breaks. Ghost accomplished this by redesigning how the trigger connector works the pistol. The redesign gives the trigger a huge mechanical advantage over the old-style conventional connectors. Smooth no-load means no flinching and staying on target. In this kit, Ghost has combined their Angel 3.0 drop-in trigger connector with four premium springs, allowing you to fine-tune your trigger pull, feel, and weight.Features :Drop-in Angel 3.0 Connector4lb Reduced Power Striker Spring6lb Extra Power Striker SpringReduced Power Safety Block Plunger Spring6lb Extra Power Trigger SpringFits all GLOCK Gen 1-5 Pistols Except 42/43/43X/48