Guns Modify 150% Nozzle Reset Spring Set for Tokyo Marui M4 MWS Gas Blowback Airsoft Rifles

"So I’ve heard a people say that this is a hard system to install and I have had to replace after causing damage myself, But I can tell you it is easy once you get the hang of it.
With a vary thin fishing line or even string you can capture the spring just behind the lock head or whatever its call causing it to stick up far enough to sick though the hole and after to get it locked in you just pull out the nozzle and the capture line should pull out with ease. Hope this helps!

P.S. I love how my MTR 16 and MK18 responds with this spring set up!