The Ruger SR40 is the successor to the well-liked Ruger SR9 in Ruger's SR line of handguns. With the magazine empty, it weighs about 27 ounces. But filling it with 15 rounds only makes it roughly 36 ounces heavier. The barrel is approximately 4.1 inches long, with six grooves, and a 1:16 right hand twist. Depending on your preference, the slides' finishing can be either brushed stainless steel or black nitride, giving it a beautiful appearance. The trigger on a polymer pistol is quite remarkable. It weighs little under 6 pounds, has a remarkable positive reset, and requires very little pre-travel. Even compared to the most popular ones, such the Gen4 Glock, the trigger has a smoother and lighter overall feel. The handgun is safe to use because the flat loaded-chamber sticks up when the cartridge is loaded in the chamber. One of its noteworthy characteristics is the back strap, which can be reversed. Although it comes with an arched side by default, you can change it to your preference and have a flat back strap.