100 USD.
The 9mm pistol would have the higher decibel rating.
Which one?
The 9mm Parabellum is longer than the .380 ACP (also called the 9mm Short) They do not interchange.
probably If the pistol is designed for 9mm Luger, 9mm Para, or 9x19, yes.
Loaded or unloaded?
50-100 or so
$100-125
50-75
An unloaded 9mm cartridge case would weigh somewhere around 3 grams, varying between manufacturers. <><><><><><><> However, if you are asking about an unloaded 9mm PISTOL, that will depend on WHICH pistol. The US Army M9 pistol weighs 33.6 oz empty- other makes and models will have different weights. Sort of like asking how much a car weighs- A Neon or a DeVille?
No
Most likely a 9mm with a suppressor
9mm MKV is not the same as 9mm Luger.