Remington Model 870
This design makes it possible to shoot multiple projectiles, most often large pellets (buckshot) or small beads (birdshot), in a conical spray that can be devastating at close range. Shotguns can even fire less lethal rounds, such as rock salt or miniature tear gas grenades, to help control crowds.
Bushmaster AR-15 Semiautomatic Rifle
The AR-15, which designates a rifle platform, not a specific manufacturer's model, remains a controversial weapon. Why? Many people mistakenly believe that "AR" stands for "assault rifle." In reality, the AR-15 is a semiautomatic rifle, which means it fires one round with each pull of the trigger. True assault rifles are fully automatic weapons, such as machine guns, that have been primarily restricted from civilian ownership since 1934.
The "AR" actually stands for "ArmaLite rifle," the company that invented the design in the 1950s. ArmaLite's chief engineer, Eugene Stoner, sought to develop a revolutionary weapon, one that was lighter and offered less recoil. His early efforts resulted in the AR-10, which weighed less than 7 pounds (3 kilograms). U.S. Army officials asked ArmaLite to downsize the AR-10 in 1956, leading to the AR-15.
Smith & Wesson Model 10 Revolver
They have a cylinder containing multiple chambers, each of which holds a round. When the trigger is pulled, the cylinder rotates and a new chamber lines up with the barrel. In single-action varieties, the user must manually cock the hammer before firing. In double-action varieties, the user pulls the trigger to rotate the cylinder and draw the hammer back to a cocked position. Model 10 fires .38-caliber rounds through a 4-inch barrel.
The M9 is a short recoil, semi-automatic, single-action / double-action pistol which uses a 15-round staggered box magazine with a reversible magazine release button that can be positioned for either right- or left-handed shooters. The M9 was modified to the M9A1 in 2006. It added—among other things—a Picatinny rail for the attachment of lights, lasers, and other accessories to the weapon. The M9A1 has more aggressive front and backstrap checkering and a beveled magazine well for easier reloading of the weapon. M9A1 pistols are sold with Physical vapor deposition (PVD) coated magazines developed to better withstand the conditions in the sandy environments in Iraq and Afghanistan.