What blowback-operated semi-automatic pistols have a similar design to Astra A-60?
Walther PP The Walther PP ("Polizeipistole", or police pistol) series pistols are blowback-operated semi-automatic pistols, developed by the German arms manufacturer Walther.
Browning Double Automatic Shotgun The Browning Double Automatic Shotgun is a short recoil operated semi-automatic (Auto Loading) 12 gauge shotgun with a 2 ¾ inch chamber. This shotgun was offered in both aluminum and steel receiver configurations with the aluminum receivers featuring a variety of finish colors. The 3 versions offered include the "Standard" as the only steel receiver version, "Twelvette", and "Twentyweight" which used the aluminium receiver. All Double Automatic's are 12 gauge. Various configurations were available for choke, barrel length, and barrel type. The firearm was produced between 1955 and 1971, with production volume of approximately 67,000.