The Beretta 92F (also known as model 92SB-F) was developed in 1983. This model is a further modification of the model 92SB that featured a slightly re-shaped grip, plastic grip panels and a new, more durable finish. The Beretta 92FS was submitted for USA XM9 Army Pistol Trials in 1985. Adopted by US Military as a M9 pistol, 9mm. Manufactured both in Italy and in USA. Also adopted by many other military and law enforcement forces. Features chrome lined barrel, recurved triggerguard for improved two-hands grip, new grip panels and lanyard ring, 'Bruniton' finish, and a trigger bar disconnect safety.
The FS is the most advanced model of the Beretta 92. I wouldn't recommend the early M9 pistols (which were basically Beretta 92F pistols) over the 92FS, but the later production M9 pistols are 92FS pistols. The main difference being the the actual M9 pistol production is supervised directly by the DoD.
Beretta 92F.
$300 - $600, typically.
No
100-400 USD
A good handgun.
Each performs as it was designed. "Better" is a subjective term for the most part.
300-600 or so
100-800 USD or so
0-350 USD depending on condition.
The Beretta 92 first entered production in 1975. The M9 variant of the Beretta 92F was adopted in 1985.
100-450 US dollars depending on EXACTLY what you have.