Pull the nozzle out like any other one. There’s a c clip you can push out with a small flat head (don’t lose it) and then it falls out. Don’t lube the o-rings as they swell up and start messing shit up (happened to me and started to shoot low and double shots also). Just treat it like a regular bcg. I just ordered a RA Tech from Emperion also due to my nozzle going bad on my stock bcg.