Which caliber? The Ultrastar was made in 9x19 Parabellum, 9x21, and .40 Smith & Wesson. Triple K products manufactures them for the 9x19 and .40 S&W, at a cost of $42/per. If you have the 9x21 model, you'd probably have to go to a European distro, such as Smart Reloader. Of course, there are always your sites such as Gun Broker, Auction Arms, or Guns America.
The OEM - Star Bonifacio Echeverria, S.A. - went defunct in 1997. The remnants of Star, Astra, and Ipar Guns merged to form a company called ASTAR, whose products have not been made available in the United States.
Try e-gunparts.com.
Usually not. The 9mm Parabellum catridge is longer than the .380, as a result, a 9mm magazine is also bigger, and the magazine will not fit in the .380 magazine well.
Yes, a Glock 19 9mm magazine can be used on a Glock 23 since both firearms are chambered in 9mm.
No. It depends on the make and model of your 9mm and what kind of magazine it was designed to take. In the past automatic pistols each had their own magazine and they were very seldom interchangeable. Today there is more interchangeability, but there is as yet no universal magazine that will fit into every 9mm.
no
No
Depends on which 9mm. In general most are magazine fed semi-automatic guns. Remove the magazine by pressing the magazine release. Press cartridges into the magazine, insert magazine into firearm, draw bolt or slide back, releasing it, and allowing springs to close the action.
The Glock 17 (full-size 9mm) holds 17 rounds in a factory magazine. The Glock 19 (compact 9mm) holds 15 rounds in a factory magazine. The Glock 26 (teeny-tiny 9mm) holds 10 rounds in a factory magazine. The Glock 17L/34 (competition) also holds 17 rounds.
No
Yes
First it is Beretta, second, it is a magazine, not a clip. There are several different 9mm models made by Beretta- it will use the magazine made for that model.
Not usually, but it depends on the specific firearm and magazine you are asking about.