this is the instructions to build a cheap airsoft tripmine. to build this you will need
1 3/4" diameter pvc pipe approximately 2.75" long.
1 metal spring approximately 2.65" long
1 endcap for pipe
6-8 airsoft bb's
metal or wooden dowel approximately 4mm in diameter
Step 1: step one
drill two holes in the pvc pipe about one inch from one end.