Airsoft Silencer (G&G M4 Combat Machine) Update 1.3

http://www.thingiverse.com/thing:1657760
Third Update on this silencer of mine. Shortened the top slide in and added a 7x7mm hole for the center rod of the G&G Raiders

Original:
made an update to the the gun side hole.

This is a silencer for the M4 Combat Machine (airsoft) by G&G.
Unscrew the current cast iron barrel. And plug this silencer in its place - it runs from the picatinny rail all the way to the barrel tip.
Total length is 173mm (excluding a section then goes into the picat