You know the sound even if you never knew the name: the rising wail, the frantic yelp, the blast of air horn at an intersection. The Federal Signal PA300 arrived around 1983 and is still being built today. Here is where it came from, how to tell a 1985 unit from a 1995 one by its faceplate, and why three sirens off the same shelf can have three ...

Factory Glock parts are in stock nearly everywhere, prices are honest, and forty years of armorer knowledge is a free search away. All three at once is unusual — and the new V Series is the first real break in parts continuity since Gen 5. Here is what interchanges across Gen 1-5, what the V Series changes, and the short list of spares worth ...