JeeperCreeper said:
From all accounts, the Star 30M seems to be a fine weapon. But it doesn't seem to be related to the BHP or CZ-75.
The CZ and BHP, while they look a lot alike, have almost nothing in common. Internally, they've very different, and the CZ is DA/SA, while the BHP is SA only. The 30M seems to be it's own design, sharing just a technical point or two with the CZ and BHP.
The Star 30M uses a BHP-like linkless Short-recoil system. It also has the slide running inside the frame (like the CZ and SIG P-210). Most modern semi-autos use a variation of the Browning short-recoil system, and the CZ and BHP use that system in two quite different ways. The fact that the BM's safety is found on the slide suggests some other internal differences from both the BHP and CZ. (That said, Tanfoglio did build some CZ-pattern guns with safeties on the slide.)
The Star site has a pretty good history. [Link follows...] The 30M is an improved version of the 28M, which was Star's first DA/SA gun.
http://star-firearms.com/firearms/guns/283031/index.shtml
Info on the Star site says that the Star 30M was sold in the U.S. as the Starfire, and I've had several of those guns. I particularly liked the Starfire Plus model, which was a compact version in 9mm, using a double-stack mag and alloy frame. The 30M Stars were still used widely by police and military units in Spain until just a few years ago, when parts shortages started to be a problem.
Parts are scarce for many of the models, but some are still made by small shops in Spain and if you search diligently, you can sometimes find what's needed.