Back in the day, the old Star PD was the original small light weight boomer, alloy frame and in .45acp, cheap and a lot of my cohorts loved them. I had 3 Star auto pistols, 2 consecutive serial numbered 9mm and 1 45, I think they were called firestars?, wished I had kept all 3, the .45 was not bad at all. The .45 was a single stack, but the 9's were double stack, very small but all steel models.