After Walther Arms entered the semi-automatic pistol market in the early 20th century, its designs quickly evolved. The Model 4 was one of the most popular pre-World War I pistols made.

380 ACP (Automatic Colt Pistol); the “Short ... is $671.13 new and $504.40 used.” Walther’s official website lists an MSRP of $969.00 for both the black and stainless steel finish ...