Thanks much! I would have never thought of adding a filter to the air filling process. This is the kind of knowledge I really appreciate!The LOP on the bullpups are pretty much the same as on a traditional rifle. Most of the air guns mentioned here have an adjustable LOP. Worst case you can buy spacers used to adjust shotguns/rifles.
Also, be sure to pickup a good desiccant filter so that you don't ruin your new PCP. Here are two I use:
Small 3" Filter:
Medium 7" Filter
Large 12" Filter
The 3" filter works fine until you get to a 65%+ humidity day and are refilling a lot. The desiccant gets saturated in maybe 6-7 fills. You can get more fills from the 7" and 12", however, the larger the filter, the longer the fill times. The 7" is fine. It only adds maybe a minute to a minute and a half to a fill. The 12" can add 5 minutes depending on your gun's capacity.
Toss that Zeolite media they come with and get some color changing silica bead:
It will go a long way because it is reusable. Once the orange turns to green, dump it out in a container. When you have enough saturated beads, throw it in the over at 250F for a couple hours and it's ready to go ahead.
Heppy hunting.
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