Note he wears his holster front ways which is the way Masterson wore his gun I believe. He also carried a derringer.
I remember they used to sell a Bat Masterson cap gun set. I had the Roy Rogers version.
I had a Lone Ranger cap gun, but Bat Masterson was also a favorite show. I like Roy as well except when he sang.
His derringer was in his belt buckle.
I had a toy one, belt buckle derringer, like it when I was a kid. I had a huge selection of TV cowboy show guns. Damn I wish I still had all that stuff, it'd be worth a fortune in memories and $$$.