Below is a brief list of most important modifications and versions produced in the 92-series over last 30 years:
Beretta 92S (1976) – first modification of the basic model 92, with non-ambidextrous slide-mounted safety/decocker and magazine release button set low in the left grip panel. It was replaced in production by the Model 92SB.
Beretta 92SB (1981) – further evolution of model 92S, initially designated Model 92S-1, later designated 92SB with the introduction of the firing pin block. The manual safety is ambidextrous, the magazine release relocated to the base of the trigger-guard. Discontinued since 1991.
Beretta 92SB-C (1981) – Compact version of the model 92SB. Overall length was 197 mm, barrel length 103 mm, magazine capacity 13 rounds (also accepted standard 15-round magazines).
Beretta 92SB-C type M (1983) – slimmer version of the model 92SB-C, with a single-stack magazine which held only 8 rounds.
Beretta 92F (1984) – initially designated 92SB-F, later renamed 92F. Evolved from the Model 92SB during American XM9 trials, with a slightly reshaped grip and trigger-guard, also a different finish. The barrel bore and chamber are chrome-plated.
Beretta 92G (1989)- the so called "Gendarmerie" version, created at the request of the Gendarmerie Nationale de France. Also manufactured under licence in France by GIAT Industries as the PA MAS G1. The pistol is the same as the model 92F except for the operations of the lever, which lost its safety lock function and is used only to safely decock the hammer.
Beretta 92FS (1989) – a minor modification of the Model 92F, with an enlarged hammer pin head which prevents the slide from flying back in the case of breakage. Presently, all US M9 pistols are modified to 92FS standard.
Beretta 92FS-C (1989) – compact version of the Model 92FS, similar in dimensions to earlier model 92SB-C. No longer made.
Beretta 92FS-C type M (1989) – single-stack version of Model 92FS-C, magazine capacity 8 rounds. No longer made.
Beretta 92DS (1990) – Double Action Only version of the Model 92FS, with spurless hammer and manual safety.
Beretta 92D (1990) - Double Action Only version of the Model 92FS, with spurless hammer and no manual safety levers.
Beretta 92FS Brigadier (1996) – version of the Model 92FS with a reinforced, thickened slide; another change is that the front sight is not integral to the slide, but is dovetailed into it.
Beretta 92FS Centurion (1996) – version of the Model 92FS with a shortened barrel and slide, the frame is the same as on the Model 92FS. Overall length is 197 mm, barrel length is 103 mm, magazine capacity 15 rounds.
Beretta 92 Vertec (2003) – version of the Model 92FS that addressed constant complaints about the excessive grip width of Model 92 pistols. The backstrap of the grip on Vertec models is made more linear; another change is the addition of an integral Picatinny rail to the frame.
Beretta 90two (2006) - a most recent face-lift version of the basic Model 92 design. Key changes are modular one-piece grip panels (available in various shapes), integral Picatinny rail under the barrel (with cover), restyled slide and integral recoil buffer built into action.
Beretta M9A1 (2006) - version of the M9 with an integrated Picatinny rail (for light and lasers) and aggressive checkering grips. Features a special magazine treated against Sand (PVD coating). Issued to the United States Marine Corps
