I was making these many years ago until I found it wasn’t the way to go and tuning the gun without a regulator was it. (Tuning consisting of more then lefty Lucy righty tidy of factory gun). But even so Marauders out of the box nowadays are tuned for a flat string from 3000 to about 2100 ish. It’s been like that for a couple years now. I’m just doing it with better shot count here on my end. Not even enough to make any poi difference. Just can’t justify the $250+ just in parts to a customer to get a probed gun and a guage that’s reads in bar. MERICA! Lol.
Two questions: 1. What is an air probe? Is it less desirable than the quick disconnect fitting? 2. So the gauge on the bottom of the Marauder stock reads the regulated pressure? What do you call that -- reservoir pressure?
Fill probes and adapters needed for those coming from factory with threaded end. Pre-installed male foster fittings are preferred by many since most probes are airgun specific so a PCP collection may require a drawer full. WM
Twin-gauge regulated airguns use one for air reservoir pressure, the other regulator pressure. Not all regulated airguns have two gauges, only one for air reservoir pressure. WM
The FX M3 air reservoir gauge (not pictured) reflects pressure in bottle, needle will drop as shooting occurs. Regulator gauge (pictured), unless regulator adjusted, broken or air reservoir drops below set pressure ("Falling Off the Regulator"), needle will remain constant. WM