Notes: The Astra 400 (also known as the Astra Model 1921) is related to the Astra 300 above, and is in fact a larger, earlier version of the 300 in different calibers. The Astra 400 also takes considerable design influence from the earlier Campiro-Giro, which itself was greatly influenced by the Browning M-1910. The Astra 400 was the Spanish service pistol 1921-1950, was used by the French Army in the 1920s, and was used by the Chilean and Nazi militaries; it was also popular with civilians. (The Chilean Navy used the Astra 400 well into the 1980s!) Over 106,000 were made, and they may be found throughout Western Europe; in addition, they have, since the late 1990s, been the object of numerous collectors worldwide.

The Astra 400 is unusual in that is uses no breech locking of any sort; it is a straight blowback design. While this makes for a much simpler mechanism, it can also make the Astra 400 jump in the hand with each shot and also increases the felt recoil. Though they are well-constructed, most Astra 400s have been so heavily used that they are no longer found in decent condition today. They were, however, expensive for their time, the sights are so small as to be virtually unusable without undue aiming, the trigger pull is quite stiff, and a firm pull is required for the slide due to strong recoil springs (another by-product of the blowback operation). That strong recoil spring also makes stripping and reassembly very difficult. The barrel is almost completely enclosed by the slide and a large cylindrical shroud, and is a full 5.9 inches long; the hammer is shrouded.

9mm Largo versions in good condition can also chamber 9mm Parabellum, 9mm Steyr, .38 Special, and .38 Super ammunition, but only 1 in 10 are in good enough condition to actually fire those rounds safely, and loading these calibers in more worn Astra 400s is not recommended. The Astra 400 was also produced in .32 ACP and .30 Mauser (7.62 Tokarev) versions, but these are very rare. They cannot chamber the extra calibers.

The Astra 600 was a smaller version of the Astra 400 designed in 1942 at the request of Nazi Germany. It was chambered only in 9mm Parabellum. The Astra 600 was issued primarily to the Nazi occupying forces and their collaborators in France, but issue did not begin until May 1944. About 10,500 were so issued, until the Allied invasion. Production continued after that point until 1948, but Astra had no large-scale sales until most of their inventory of Astra 600s (close to 33,000) were bought by the West German Police in 1951. Small amounts (about 3500) were sold to civilians in various parts of the world.

The Astra 600 has all of the strong and weak points of the Astra 400. Most of the differences are in the slight modifications for the dimensions of the 9mm Parabellum cartridge, though the Astra 600 is also a bit heavier than the Astra 400, and the barrel is also shorter at 5.2 inches.

In 1958, Astra began producing an updated form of the Astra 600, the Astra 800. The Astra 800 (often called the Condor) has a chamber-loaded indicator and external hammer. It also has a (very) slightly-longer barrel and is somewhat heavier, and was produced using more modern methods and materials. It was much more successful than the Astra 600, with about 11,000 Astra 800s being built until production stopped in 1969.

Notes: This is a compact pistol designed for those that need more firepower than offered by the Astra 5000. The A-70 uses three safeties: a firing pin safety that prevents the firing pin from engaging unless the trigger is deliberately pulled, a manual thumb safety, and a hammer safety. Operation is by recoil, with a locked breech and single-action. It was designed for plainclothes government personnel.

Notes: This is another compact Astra pistol. It is recoil operated, with a cam-dropping barrel system, locked breech, and double-action operation. It has the same three safeties as the A-70. The A-75 also has a decocker. In 1994, Astra introduced a version with a light alloy frame, as well as versions chambered for .45 ACP with both a steel frame and a light alloy frame. Both the steel and ally models are surprisingly heavy for their size, but this helps mitigate recoil.

"Firefox" is the name under which the A-75 is normally known to civilians, especially in the US, Canada, and other English-speaking nations.

Notes: This Spanish pistol is similar in design to the Swiss SiG-Sauer P-220. It has a decocking lever and mechanism. The pistol cannot be fired except by a conscious pull of the trigger, and the A-80 does not have a manual safety lever. The decocking lever is normally on the left side, but it can be removed and replaced on the right side for left-handed shooters. The weapon has white dot sights for night use.

The A-90 is an updated A-80, with a double action lockwork with better safety, adjustable sights, and slightly more compact dimensions and less weight. It also comes in a .45 ACP version for those who prefer a larger caliber, or .38 Super for those who want more power than 9mm Parabellum offers. The A-90 is designed with safety in mind; it has a decocker, a manual safety, and a firing pin safety. This is because the A-90 was designed with civilians in mind as well as police.

The A-100 is a further improved A-90, designed primarily to correct the problems with the A-80 and A-90 that lost Astra the competition for a new Spanish military service pistol in the late 1970s. The A-90 was an excellent design, but many complaints about the A-90 centered around the number and positioning of the controls – including three manual safeties, a decocker, and a poorly-placed magazine release. Astra combined the best features of the A-80 and A-90, then improved the design more, producing the A-100. The controls and the internal workings were both simplified, and the sights were made easier to use and given a 3-dot design. While (like most double-action pistols), the first trigger pull is long and heavy, subsequent shots require only a short and light trigger pull. The only manual safety is the slide lock/decocker – the A-100 relies almost entirely on its double-action operation and several passive internal safeties. The A-100 is typically called the "Panther" by EAA and companies licensed for export sales of Astra’s pistols.