You will need:
- 16mm Alu
- Hot Glue and Gun
- 20mm conduit or 15mm PVC
- Couplers to match
- 32mm to 25mm Adapter/Coupler
First you want to cut 4 Alu Barrels to 3.5 Inches length
then glue them together and wrap the flat end in e-tape to make it fit snugly into the 32mm end of the Adapter. Make sure to fill in all gapes like in the pictures.
Now take your Conduit/PVC coupler and cut it in half and then wrap it in E-Tape until it fits into the 25mm Side of the Adapter. Then Fill in the gap with hot glue and your done!
This fits perfectly into a mega missile aswell!
Loaded with 8 1.5 Inch stefans it shoots around 40-50ft with a massive spread! (in a Mega Missile)
Haven't Range tested with 4