Smith & Wesson Centennial means the shooter takes longer to bring the firearm back on line for a second shot. Smith & Wesson Centennial S&W Centennial is a family of revolvers made by Smith & Wesson on the "J-Frame". Depending upon caliber, the cylinder holds either 5 (9mm, .38 spl, .357 magnum), 6 (.32 magnum), 7 (.22 magnum), or 8 (.22 LR), cartridges. Centennials feature a fully enclosed (internal) hammer, which makes them Double Action Only (DAO) firearms. Like all other "J-frame" Smith & Wesson revolvers, they have a swing-out cylinder. Centennial models have been made in different versions like PD "Personal Defense", LS
Smith & Wesson Model 2 Model". In 1880, Smith & Wesson offered the Model 2 in a double-action format, whereby a single squeeze of the trigger both cocked the hammer and fired the revolver. These revolvers are easily recognizable by their fully enclosed trigger guard. The first such revolvers made by Smith & Wesson. These revolvers were available in nickel or blued finishes and a smaller version was offered in .32 Smith & Wesson. The Model 2 in .32 S&W was made in 5 iterations. The initial version was a batch of 30 revolvers that were the first of such made by Smith & Wesson