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A 1/2" drive pistol-grip air impact wrench. An impact wrench (also known as an impactor, impact gun, air wrench, air gun, rattle gun, torque gun, windy gun) is a socket wrench power tool designed to deliver high torque output with minimal exertion by the user, by storing energy in a rotating mass, then delivering it suddenly to the output shaft ...
The Brady Handgun Violence Prevention Act (Pub.L. 103–159, 107 Stat. 1536, enacted November 30, 1993), often referred to as the Brady Act, the Brady Bill, or the Brady Handgun Bill is an Act of the United States Congress that mandated federal background checks on firearm purchasers in the United States. It also imposed a five-day waiting ...
Physics of firearms. From the viewpoint of physics (dynamics, to be exact), a firearm, as for most weapons, is a system for delivering maximum destructive energy to the target with minimum delivery of energy on the shooter. [citation needed] The momentum delivered to the target, however, cannot be any more than that (due to recoil) on the shooter.
District of Columbia v. Heller, 554 U.S. 570 (2008), is a landmark decision of the Supreme Court of the United States.It ruled that the Second Amendment to the U.S. Constitution protects an individual's right to keep and bear arms—unconnected with service in a militia—for traditionally lawful purposes such as self-defense within the home, and that the District of Columbia's handgun ban and ...
Mean point of impact (MPI) is the calculated center of the grouping, which is the average center of all the shots, and is not necessarily located at a hole in the target. [2] The process of mechanically readjusting the gunsight's point of aim to match the MPI is called sighting in or "zeroing" the gun.
The Colt AR-15, a type of semi-automatic rifle. A semi-automatic firearm, also called a self-loading or autoloading firearm (fully automatic and selective fire firearms are also variations on self-loading firearms), is a repeating firearm whose action mechanism automatically loads a following round of cartridge into the chamber and prepares it for subsequent firing, but requires the shooter to ...
Firearms were instrumental in the fall of the Byzantine Empire and the establishment of European colonization in the Americas, Africa, and Oceania. The 19th and 20th centuries saw an acceleration in this evolution, with the introduction of the magazine, belt-fed weapons, metal cartridges, rifled barrels, and automatic firearms, including ...
Firearm. The M16 rifle and the AK-47, two common firearms with significant influences on firearm design. A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and operated by an individual. [1][2][3] The term is legally defined further in different countries (see legal definitions).