Retro Arms - M4 Speed Trigger for V2 Gearbox Type C - Black is a drop-in trigger, designed to replace the stock unit in a Version 2 Gearbox to increase the trigger response of the weapon. The trigger is constructed from EN AW 2007 Grade Aluminium, and is finished with an attractive Anodized finish. The trigger itself is designed to improve Semi-Automatic Shot Speed, by shortening the trigger pull by up to 70%. The flat trigger face and short pull is designed to allow for almost instantaneous follow up shots or double taps with the correct Gearbox Setup. The triggers are built from extremely high grade Aluminium, making them both durable and lightweight, without compromising on strength. This trigger is perfect for Airsoft Skirmishers which prefer Semi Automatic, and are building a CQB gun with a fast trigger response, or for those who want to add a bit of flair to their weapon with a fancy looking trigger.