In 1985, Ruger introduced the company's next generation of duty-sized, double-action revolvers. Dubbed the GP100, this 6-shot .357 Mag./.38 Spl. soon replaced the Security Six and Speed Six models ...

First built as a replacement for the Security-Six, Speed-Six and Service-Six revolvers, the GP100 makes handling .357 Mag. easier than ever and is a staple of Ruger's line.

Sturm Ruger’s answer to the Smith & Wesson 686, the Ruger GP100 was introduced in the early 1990s. The GP100 was the successor to Ruger’s Security Six and Speed Six pistols, but uses a large ...