Speed Airsoft M4 AEG Externally Tunable Trigger SE2 Special Edition | Blade

- next level tunable trigger with no gearbox modification required

- great for experienced player 

- uses stock gearbox spring

- one external adjustment and one internal adjustment

- for gearbox with stock block switch or gearbox that has upgraded MOSFET board with microswitch

- allowed even greater adjustability over M4 SE with more trigger performance improvement