How many models are of mosberg152?

The Mossberg 152 is a .22 caliber semi-automatic rifle that was produced in several variants, primarily during the 1950s and 1960s. While there are a few different models and configurations, the most notable ones include the Mossberg 152, 152A, and 152B, each with slight variations in features and specifications. Overall, the exact number of distinct models may vary depending on factors like regional variations and specific features, but they all belong to the same family of rifles.