with capacities of 15, 17, 19, 31, and 33 rounds, will function in the Glock 26. More than simply a "shortened" Glock 19, the design of the subcompact Glock 26 required extensive rework of the frame, locking block, and spring assembly that features a dual recoil spring. Calibers Semi-automatic pocket pistols are typically chambered in .22 LR, .25 ACP, .32 ACP, and .380 ACP calibers for the older designs. However, newer subcompact designs are also made in 9 mm Parabellum, .40 Smith & Wesson, and .45 ACP. These pistols typically have magazine capacities ranging from 5 to 15 rounds. Pocket revolvers typically range from .22 LR, .38 Special, and .44 Special for the older designs. However, the newer designs are also made in .357 Magnum and .44 Magnum. These revolvers typically hold 5 to 10 rounds depending on the caliber. Note that larger subcompacts (6-15 rounds of 9mm, .40 S&W, .45 ACP, etc.) and larger frame revolvers (short barrel, but large grip) start to stray from the idea of a "pocket pistol." However, the concept of a pocket pistol is somewhat debatable. It really comes down to what individuals consider pocketable. Derringers such as the older Remington Model 95 were chambered for .41 Rimfire. However, modern derringers are chambered for everything from .22 LR to .45-70 Government, even .410 bore shotgun shells, with the .22 LR, .38 Special, .44 Special, .357 Magnum, .44 Magnum, and .45 Colt being among the most popular calibers. Today, 2 round derringers are the most common. However, in the not-too-distant past, 1 to 4-round derringers have also been made. Concealed carry Pocket pistols as the name suggests are usually small pistols carried in a coat, jacket, or trouser pocket. They are used for concealed carry by those desiring a discreet self-defense gun or desiring to carry a backup gun. They are point-and-shoot pistols, intended for fast one-handed operation. The typical .25 ACP pocket pistol is designed for close-range work and has an effective range of about 7 yards (6.5 m). Pocket pistols are typically hammerless designs, made with rounded edges and with few controls, to prevent snagging and to make them easier to carry. Revolvers are also typically hammerless, or have shrouded, or even bobbed hammers, all allowing the gun to be drawn quickly with little risk of it snagging on clothing. The shrouded and hammerless models may even be fired through a coat or