I love the show. Watch it with my kids, who love it as well. Thank you for making it.
Regarding other topics, I for one would love to see more on double action revolvers. Not sure how broad or narrow you would want to go, but I think an episode on the S&W k-frame would be outstanding. Considering the original M&P was introduced 12 years before the 1911, and is still in production today, and how many gazillions of cops carried it for decades, I think that's a good story.
It would also be interesting also to see an episode on snubbie revolvers. I would love to know more about its origins.