AR-15 in .40 S&W: Is It Possible and Should You Build One?
The .40 S&W Cartridge: A Closer Look History and Development Before venturing into the complexities of adapting an AR-15 for .40 S&W, it’s essential to understand the cartridge itself. The .40 S&W was born from a confluence of events in the late 1980s. Law enforcement agencies, looking for an intermediate round between the 9mm Luger … Read more