Complex sentence: It was widely used by several U.S. police, sheriff and state agencies and was a popular choice in high humid states because the stainless model 64 was more corrosion and rust resistant than the blued Model 10.
Split into simpler sentences: It was widely used by several U.S. police, sheriff and state agencies. The Model 64 was a popular choice in high humid states because the stainless model 64 was more corrosion and rust resistant than the blued model 10.