Specifically, Beretta made a limited run of single action pistols modeled after the 92 and 96 series; called the Steel I in either 9 mm or 40 S&W respectively. Great solid steel guns; but pricey these days. Beware buying one; some are SAO, some are SA/DA.
From Wiki: "Steel I (2004) Nickel-plated carbon steel, single-action-only, collector's model. [Edit: Both single-action-only and single/double-action variants exist. Also used and desirable for competitive shooting because of its steel frame (for added weight and strength), the frame-mounted safety and/or Vertec-style grip-frame that are all found to be desirable features in a competition gun.]
The Steel I is one, they also made the Combat and also the Stock.