Hey there, I haven't been on the forums in a long time due to the long winter up here and I forget about airsoft in the long winter days. But recently I just got back into playing airsoft with my friends, and we have been looking at placing an order from Airsoft Gi (shipping is so grossly out of proportion in Alaska). I have been looking at the Airsoft GI PE parts and they look pretty good. I have been trying to decide on whether or not to get the piston and the sears. I want to get a zero trigger but they are out of stock currently. The Zero Trigger comes with a piston and the sears so I don't really want to have extra parts. What do you think I should do?