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Bushmaster M17S
The Bushmaster M17S is a semi-automatic bullpup rifle that was manufactured by Bushmaster Firearms International from 1992 until 2005. History The design of the M17S dates back to 1986 when the Australian company Armtech Ltd. developed the prototype as a prospective military rifle for the Australian Army. Two prototypes were developed, one for the 5.56×45mm NATO, the C60R, and the more revolutionary C30R that used caseless ammunition. The C30R was developed hastily and an out-of-battery ignition resulted in a prototype exploding during a high-profile demonstration. The Australian Army adopted a licence-built version of the Steyr AUG, leading to the sale of the Armtech design to another Australian company, Edenpine (Edenpine Pty Ltd. Charles St. George, improved the design, resulting in the ART-30 and SAK-30. The salient features of the M17S were in place but some Finnish Valmet parts were used instead of AR-15 parts to reduce costs. Edenpine expressed interest in selling t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bullpup
A bullpup firearm is one with its firing grip located in front of the Chamber (firearms), breech of the weapon, instead of behind it. This creates a weapon with a shorter overall length for a given barrel length, and one that is often lighter, more compact, concealable, and more maneuverable than a conventionally configured firearm. Where it is desirable for troops to be issued a more compact weapon, the use of a bullpup configuration allows for barrel length to be retained, thus preserving muzzle velocity, range, and ballistic effectiveness. The bullpup concept was first tested militarily in 1901 with the British Thorneycroft carbine, but it was not until the Cold War that more successful designs and improvements led to wider adoption. In 1977, the Austrian Federal Army, Austrian Army became the first military force in the world to adopt a bullpup rifle, the Steyr AUG, as a service rifle, principal combat weapon. Since then the militaries in many countries have followed suit w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valmet
Valmet Oyj, a Finnish company, is a developer and supplier of process technologies, automation systems and services for the pulp, paper, energy industries. Flow control serves a wider base of process industries. History 1999–2012 Valmet and Rauma merge as Metso At the end of 2009, Metso acquired Tamfelt Corporation, one of the world's leading suppliers of technical textiles. Valmet 2020– At the end of June 2020, Neles was separated from Metso. The State of Finland sold its share of 15 per cent to Valmet. In mid-July, the Swedish company Alfa Laval made an offer to buy Neles. Valmet's CEO Laine rebuked the board of Neles for ill-advised actions and accepting a price that was too low. Laine had previously managed the business operations of Neles and thought that Valmet could in time have bought more of its stock. Alfa Laval's CEO said that they had bought Neles at a “pandemic discount,” and the front page of the Swedish financial newspaper Dagens Industri celebra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bullpup Firearms
The following is a list of firearms designed in a bullpup (i.e., action behind firecontrol/trigger group) configuration. See also *Semi-automatic shotgun *Automatic shotgun *Combat shotgun *List of combat shotguns *List of multiple-barrel firearms *List of revolvers *List of semi-automatic shotguns *Riot shotgun *List of rifles References {{DEFAULTSORT:Bullpup firearms Lists of firearms, Bullpup firearms Bullpup firearms, * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STANAG 4179
In NATO, a standardization agreement (STANAG, redundantly: STANAG agreement) defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the alliance. Each NATO state ratifies a STANAG and implements it within its own military. The purpose is to provide common operational and administrative procedures and logistics, so one member nation's military may use the stores and support of another member's military. STANAGs also form the basis for technical interoperability between a wide variety of communication and information systems (CIS) essential for NATO and Allied operations. The Allied Data Publication 34 (ADatP-34) NATO Interoperability Standards and Profiles which is covered by STANAG 5524, maintains a catalogue of relevant information and communication technology standards. STANAGs are published in English and French, the two official languages of NATO, by the NATO Standardization Office in Bru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminum
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7075 Aluminum Alloy
7075 aluminium alloy (AA7075) is an aluminium alloy with zinc as the primary alloying element. It has excellent mechanical properties and exhibits good ductility, high strength, toughness, and good resistance to fatigue. It is more susceptible to embrittlement than many other aluminium alloys because of microsegregation, but has significantly better corrosion resistance than the alloys from the 2000 series. It is one of the most commonly used aluminium alloys for highly stressed structural applications and has been extensively used in aircraft structural parts. 7075 aluminium alloy's composition roughly includes 5.6–6.1% zinc, 2.1–2.5% magnesium, 1.2–1.6% copper, and less than a half percent of silicon, iron, manganese, titanium, chromium, and other metals. It is produced in many tempers, some of which are 7075-0, 7075-T6, 7075-T651. The first 7075 was developed in secret by a Japanese company, Sumitomo Metal, in 1935, and eventually used for airframe production in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extrusion
Extrusion is a process used to create objects of a fixed cross section (geometry), cross-sectional profile by pushing material through a Die (manufacturing), die of the desired cross-section. Its two main advantages over other manufacturing processes are its ability to create very complex cross-sections; and to work materials that are brittle, because the material encounters only compressive stress, compressive and shear stress, shear stresses. It also creates excellent surface finish and gives considerable freedom of form in the design process. Drawing (manufacturing), Drawing is a similar process, using the tensile strength of the material to pull it through the die. It limits the amount of change that can be performed in one step, so it is limited to simpler shapes, and multiple stages are usually needed. Drawing is the main way to produce wire. Metal Bar stock, bars and tube (fluid conveyance), tubes are also often drawn. Extrusion may be continuous (theoretically producin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SA80
The SA80 (Small Arms for the 1980s) is a British family of 5.56×45mm NATO service weapons used by the British Army. The L85 Rifle variant has been the standard issue service rifle of the British Armed Forces since 1987, replacing the L1A1 Self-Loading Rifle. The prototypes were created in 1976, with production of the A1 variant starting in 1985 and ending in 1994. The A2 variant came to be as the result of a significant upgrade in the early 2000s by Heckler & Koch and remains in service as of 2025. The A3 variant was first issued in 2018 with several new improvements. The remainder of the SA80 family consists of the L86 Light Support Weapon, the short-barrelled L22 Carbine and the L98 Cadet rifle. The SA80 was the last in a long line of British weapons (including the Lee–Enfield family) to come from the Royal Small Arms Factory, the national arms development and production facility at Enfield Lock, before its weapons factory was closed down in 1988. Development Post-war i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas-operated
Gas-operation is a system of operation used to provide energy to operate locked breech, Semi-automatic firearm, autoloading firearms. In gas-operation, a portion of high-pressure gas from the Cartridge (firearms), cartridge being fired is used to power a mechanism to dispose of the spent Casing (ammunition), case and insert a new cartridge into the Chamber (firearms), chamber. Energy from the gas is harnessed through either a port in the Gun barrel, barrel or a trap at the Muzzle (firearms), muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the Firearm action, action, extraction of the spent case, ejection, cocking of the Hammer (firearm), hammer or striker, chambering of a fresh cartridge, and locking of the action. History The first mention of using a gas piston in a single-shot breech-loading rifle comes from 1856, by the German Edward Lindner who patented his invention in the United States and Britain. In 1866, Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushmaster M17S Left
Bushmaster may refer to: Snakes * Any member of the genus ''Lachesis'' (genus), large venomous pit vipers of Central and South America Military and firearms * Bushmaster Firearms International, an American firearms manufacturer ** Bushmaster Arm Pistol, a 5.56×45mm NATO weapon classified as either a long pistol or short rifle ** Bushmaster M17S, a semi-automatic bullpup rifle ** Bushmaster ACR, an assault rifle originally designed by Magpul ** Bushmaster XM-15, a line of AR-15 pattern rifles and carbines ** Bushmaster M4-type Carbine, a carbine in the XM-15 family ** .450 Bushmaster, a rifle cartridge originally developed by LeMAG Firearms LLC * Bushmaster Protected Mobility Vehicle, an Australian infantry mobility vehicle * During World War II, the 158th Infantry Regiment of the Arizona Army National Guard were nicknamed the "Bushmasters" * A variant of the Landing Vehicle Tracked (LVT) * M242 Bushmaster, a 25mm chain gun manufactured by Alliant Techsystems ** Mk44 Bushma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BATF
The Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE), commonly referred to as ATF, is a domestic law enforcement agency within the United States Department of Justice. Its responsibilities include the investigation and prevention of federal offenses involving the unlawful use, manufacture, and possession of firearms and explosives; acts of arson and bombings; and illegal trafficking and tax evasion of alcohol and tobacco products. ATF also regulates via licensing the sale, possession, and transportation of firearms, ammunition, and explosives in interstate commerce. Many of ATF's activities are carried out in conjunction with task forces made up of state and local law enforcement officers, such as Project Safe Neighborhoods. ATF operates a unique fire research laboratory in Beltsville, Maryland, where full-scale mock-ups of criminal arson can be reconstructed. ATF had 5,285 employees and an annual budget of almost $1.5 billion in 2021. ATF has received critici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
