The compact Maruzen Walther PP Gas Blowback gets reviewed by Arms Magazine... "The famous guns representing Walther are the P38 and the PP series. Maruzen, which has produced many air guns licensed by Walther, has finally released the Walther PP, following the PPK/s and PPK. The PP was developed as a police pistol in 1929, and its DA system was highly praised and adopted by police organizations in European countries, becoming the world's first successful DA-type automatic pistol.