How exactly do you increase/ decrease the spring tension and can this be done under pressure or only when the tank is empty (as in the FX Impact) ?
You can adjust the hammer spring tension at any time. It's an allen screw in the back of the action that adjusts it.
Is this product photo accurate? Does it actually come with the nice 1911 style grips or are the grips like all the other photos on the PA site?
Yes, the gun now comes with the 1911 style grips
What is the FPS velocity using standard size 14.3 grain or heavier 18.13 grain pellets.
About 585 fps with JSB 18.13 pellets
Can you attach a suppressor to it?
Pyramyd does not sell one. The inside of the end of the shroud is threaded 13x1mm so you could put something that would fit those threads on the gun.
How many good shots per fill with an average grain pellets
Roughly two magazines (14 shots) on the regulator from a 300 BAR fill
Is this small enough to fit in a holster as a side hunter? N is it powerful enough with that small length . I wonder the range?
There is a Barrel Extension available for the AP16. Increases FPS and Still Noise Suppressed. Factory Fit so should be legal in US. Airguns Regulated from 4350psi to 3000 really makes an airgun a much better carry around shooter. 14 solid full power shots. See youtube for best video info
Would have to be a very large holster to accommodate both the cylinder and barrel. That said, definitely powerful enough for most small game out to 30 yards. Right around 14 FPE at the muzzle. The folks over in the UK do quite well with just 12 FPE.
Does this pistol have a dove tail for scoping purposes?