440 CC Capacity! 
4500 PSI !
 
Our MAGNUM Length Reservoir is a shroud-length, 4500 PSI high-pressure reservoir for the Benjamin Bulldog that not only gives you the benefit of increased air volume, but also allows you to install an after-market cylindrical moderator. It  would also be a good choice when you'd like to add a HUMA Regulator to your build and keep the stock length.

This Magnum tube utilizes the Front End Cap from your stock reservoir, or the OPTIONAL Quick-Connect Foster Fitting End Cap. We have made an optional tool that easily removes the stock cap in case you don't have a spanner wrench.
 
Magnum Tubes are made on our own CNC milling machine from Certified 2024 Aluminum with a .125" wall thickness. This is much stronger than the material used in the factory reservoirs.