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HK USP
The Heckler & Koch USP (''Universelle Selbstladepistole'' or "universal self-loading pistol") is a semi-automatic pistol developed in Germany by Heckler & Koch, Heckler & Koch GmbH (H&K) as a replacement for the Heckler & Koch P7, P7 series of handguns. History Design work on a new family of pistols commenced in September 1989, focused primarily on the United States commercial and law enforcement agency, law enforcement markets. USP prototypes participated in rigorous testing alongside H&K's entry in the Offensive Handgun Weapon System (OHWS) program requested by the United States Special Operations Command, U.S. Special Operations Command (USSOCOM), which would later result in the Heckler & Koch MK23, Mk 23 Mod 0. The USP prototypes were then refined in 1992, based on input from the OHWS trials, and the design was finalized in December of the same year. The USP was formally introduced in January 1993 with the USP40 model (the base version) chambered for the increasingly popular .4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semi-automatic Pistol
A semi-automatic pistol (also called a self-loading pistol, autopistol, or autoloading pistol) is a repeating firearm, repeating handgun that automatically ejects and loads cartridge (firearms), cartridges in its chamber (firearms), chamber after every shot fired, but only one round of ammunition is fired each time the Trigger (firearms), trigger is pulled. The pistol's fire control group disconnects the trigger mechanism from the firing pin/striker until the trigger has been released and reset manually, unlike the self-cycled firing mechanism in machine pistol, fully automatic pistols. A semi-automatic pistol recycles part of the energy released by the propellant combustion to move its bolt (firearm), bolt, which is usually housed inside the pistol slide, slide. After a round of ammunition is fired, the spent cartridge casing is extracted and ejected as the slide/bolt moves rearwards under recoil, the hammer (firearms), hammer/striker is cocked by the slide/bolt movement, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heckler & Koch P9S
The HK P9 is a semi-automatic pistol from Heckler & Koch in 9×19mm Parabellum, .45 ACP, and 7.65×21mm Parabellum and the first to use a variation of Heckler and Koch, H&K's Blowback (arms)#Roller-delayed, roller delayed blowback system in a pistol format and polygonal rifling now common in H&K designs. Design The P9 is a roller-delayed pistol manufactured from a stamped steel main frame and a polymer trigger guard. The stamped steel slide contains machined internal parts including a polygonally rifled barrel. High-profile fixed sights are fitted with two red rectangles on the rear sight and a white stripe on the drift adjustable front blade sight. Vertical zeroing is accomplished by fitting front sights of a different height. The P9S trigger operates as a traditional double action. There is a lever on the left side of the pistol grip to both decock a cocked hammer or to manually re-cock it for a single action first shot, a feature first observed on the Sauer 38H. A further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brügger & Thomet
B&T AG, formerly Brügger & Thomet AG, is a Swiss defence supplier specializing in the design and manufacturing of firearm A firearm is any type of gun that uses an explosive charge and is designed to be readily carried and operated by an individual. The term is legally defined further in different countries (see legal definitions). The first firearms originate ...s and tactical components like suppressor, sound suppressors and Rail system (firearms), rail systems. The company is based in Thun southeast of Bern, Switzerland. Overview B&T consists of a trading and a manufacturing division. The trading division works mainly to supply the domestic law enforcement and military market, representing global companies in the industry including Heckler & Koch, Aimpoint AB, Aimpoint, SureFire, and others. The company is also involved in the import and export of other war material including small arms, ammunition and related accessories. Brügger & Thomet AG was established in May ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Match Grade
Match grade frequently refers to quality firearm parts and ammunition that are suitable for a competitive match. Sometimes it also refers to other devices and parts that are made with high precision in mind. Description In firearms, the term is used to refer to ammunition and gun parts that are designed and manufactured in such a way that they have a relatively narrow tolerance and high level of accuracy. No standards are defined for its qualification and as such it is more of a relative term. In addition to its use in shooting sports, match grade equipment is often employed by military and law enforcement sharpshooters. Thus, many gun manufacturers use the term "match grade" to describe their products. For instance, the Heckler & Koch Mark 23 weapons system is considered so specifically tooled for combat that it is match grade, one primary reason that the pistol and its components were selected by the United States Special Operations Command (SOCOM) for service. The Spring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O-ring
An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross section (geometry), cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal (mechanical), seal at the interface. The O-ring may be used in static applications or in dynamic applications where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons. Static applications of O-rings may include fluid or gas sealing applications in which: (1) the O-ring is compressed resulting in zero clearance, (2) the O-ring material is vulcanized solid such that it is permeation, impermeable to the fluid or gas, and (3) the O-ring material is resistant to degradation by the fluid or gas. The wide range of potential liquids and gases that need to be sealed has necessitated the development of a wide range of O-r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HK USP Tactical 9mmSD RMP PGK
Hong Kong)., Legally Hong Kong, China in international treaties and organizations. is a special administrative region of China. With 7.5 million residents in a territory, Hong Kong is the fourth most densely populated region in the world. Hong Kong was established as a colony of the British Empire after the Qing dynasty ceded Hong Kong Island in 1841–1842 as a consequence of losing the First Opium War. The colony expanded to the Kowloon Peninsula in 1860 and was further extended when the United Kingdom obtained a 99-year lease of the New Territories in 1898. Hong Kong was occupied by Japan from 1941 to 1945 during World War II. The territory was handed over from the United Kingdom to China in 1997. Hong Kong maintains separate governing and economic systems from that of mainland China under the principle of one country, two systems. Originally a sparsely populated area of farming and fishing villages,. the territory is now one of the world's most significant fina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundeswehr
The (, ''Federal Defence'') are the armed forces of the Germany, Federal Republic of Germany. The is divided into a military part (armed forces or ''Streitkräfte'') and a civil part, the military part consists of the four armed forces: German Army, German Navy, German Air Force and Cyber and Information Domain Service (Germany), Cyber and Information Domain Service, which are supported by the Bundeswehr Support Area. , the had a strength of 180,215 active-duty military personnel and 80,761 civilians, placing it among the 30 largest military forces in the world, and making it the second largest in the European Union behind French Armed Forces, France. In addition, the has approximately 34,600 reserve personnel (2024). With German military expenditures at $88.5 billion (2024), the is the fourth-highest-funded military in the world, though military expenditures have until recently remained low at an average at 1.5% of national GDP, well below the non-binding NATO targ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitriding
Nitriding is a heat treating process that diffusion, diffuses nitrogen into the surface of a metal to create a case-hardening, case-hardened surface. These processes are most commonly used on low-alloy steels. They are also used on titanium, aluminium and molybdenum. Typical applications include gears, crankshafts, camshafts, cam followers, valve parts, extruder screws, die-casting tools, forging dies, extrusion dies, firearm components, injectors and plastic molding (process), mold tools. Processes The processes are named after the medium used to donate. The three main methods used are: ''gas nitriding'', ''salt bath nitriding'', and ''plasma nitriding''. Gas nitriding In gas nitriding the donor is a nitrogen-rich gas, usually ammonia (NH3), which is why it is sometimes known as ''ammonia nitriding''. When ammonia comes into contact with the heated work piece it dissociates into nitrogen and hydrogen. The nitrogen then diffuses onto the surface of the material creating a nitrid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MILSPEC
A United States defense standard, often called a military standard, "MIL-STD", "MIL-SPEC", or (informally) "MilSpecs", is used to help achieve standardization objectives by the United States Department of Defense. Standardization is beneficial in achieving interoperability, ensuring products meet certain requirements, commonality, reliability, total cost of ownership, compatibility with logistics systems, and similar defense-related objectives. Defense standards are also used by other non-defense government organizations, technical organizations, and industry. This article discusses definitions, history, and usage of defense standards. Related documents, such as defense handbooks and defense specifications, are also addressed. Definition of document types Although the official definitions differentiate between several types of documents, all of these documents go by the general rubric of "military standard", including defense specifications, handbooks, and standards. Strictly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slide Stop
A slide stop, sometimes referred to as a slide lock, slide release, slide catch, or bolt hold open, is a function on a semi-automatic handgun that both visually indicates when it has expended all loaded ammunition Ammunition, also known as ammo, is the material fired, scattered, dropped, or detonated from any weapon or weapon system. The term includes both expendable weapons (e.g., bombs, missiles, grenades, land mines), and the component parts of oth ... and facilitates faster reloading by pulling back the slide or depressing the slide lock to advance the first round of a new magazine. Description The various terms relate to the two functions of the component: while it automatically catches the slide (''locking'' it back) after the magazine's last round has been fired, thereby allowing the user to easily ''release'' the slide by pulling down on the switch, it also allows the user to purposefully ''stop'' or ''lock'' the slide back by pressing up on the switch while rack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chamber (firearms)
The chamber of a firearm is the cavity at the back end of a breechloading weapon's barrel or cylinder, where the ammunition is inserted before being fired. The rear opening of the chamber is the breech, and is sealed by the breechblock or the bolt. Function The act of ''chambering'' a cartridge means the insertion of a round into the chamber, either manually or through the action of the weapon, e.g., pump-action, lever-action, bolt action, or autoloading operation generally in anticipation of firing the weapon, without need to "load" the weapon upon decision to use it (reducing the number of ''actions'' needed to discharge). Automatic and single-shot pistols (such as Derringers), rifles, and shotguns generally have a single chamber integral to their barrels, but revolvers have multiple chambers in their cylinder, and no chamber in their barrel. Thus, pistols, rifles, and shotguns can usually still be fired with the magazine removed as long as a cartridge is inser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
