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Mauser Kar 98k
The Karabiner 98 kurz (; ), often abbreviated Karabiner 98k, Kar98k or K98k and also sometimes incorrectly referred to as a K98 (a K98 is a Polish carbine and copy of the Kar98a), is a bolt-action rifle chambered for the 7.92×57mm Mauser cartridge. It was adopted on 21 June 1935 as the standard service rifle by the German ''Wehrmacht.''K98k Mauser Page Retrieved 28 March 2007. It was one of the final developments in the long line of military rifles. Although supplemented by semi-automatic and fully automatic rifles during World War II, the Karabiner 98k remained the primary German service rifle [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedish Army Museum
The Swedish Army Museum () is a museum of military history located in the district of Östermalm in Stockholm. It reopened in 2002 after a long period of closure, and was awarded the title of the best museum of Stockholm in 2005. Its displays illustrate the military history of Sweden, including its modern policy of neutrality, and of the Swedish Army. History The Army Museum has been located at Artillerigården in Östermalm, Stockholm, since it was opened in 1879. The site has been used for military purposes since the middle of the 17th century, and the main depot of the artillery was located here for nearly 300 years. The current buildings were erected during the latter part of the 18th century. The museum was first known as the Artillery Museum, and changed its name to the Army Museum at the beginning of the 1930s, in order to reflect more accurately the focus of the museum. The museum underwent a major refurbishment and opened in new, modern premises in 1943. Exhibitions Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Aid
Military aid is aid which is used to assist a country or its people in its defense efforts, or to assist a poor country in maintaining control over its own territory. Many countries receive military aid to help with counter-insurgency efforts. Military aid can be given to a rebellion to help fight another country. This aid may be given in the form of money for foreign militaries to buy weapons and equipment from the donor country. In the 21st century, increasing numbers of scholars are identifying how military assistance is an instrument of power projection for influence in the era of great power competition. Various strong states are avoiding direct conflict and are engaging in the low-risk mission of train, advise, and assist (TAA) and equipping a military/militia partner/ally to pursue certain objectives and national interests. Design and Implementation The design and implementation of military aid is highly contextual based on the circumstances which are targeted. Military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tangent Sight
Iron sights are a system of physical alignment markers used as a sight (device), sighting device to assist the accurate aiming of ranged weapons such as firearms, airguns, crossbows, and Bow and arrow, bows, or less commonly as a primitive finder sight for optical telescopes. Iron sights, which are typically made of metal, are the earliest and simplest type of sighting device. Since iron sights neither magnify nor illuminate the target, they rely completely on the viewer's naked eye and the available light by which the target is visible. In this respect, iron sights are distinctly different from optical sight designs that employ optics, optical manipulation or active illumination, such as telescopic sights, reflector sight, reflector (reflex) sights, holographic weapon sight, holographic sights, and laser sight (firearms), laser sights. Iron sights are typically composed of two components mounted perpendicularly above the weapon's bore axis: a 'rear sight' nearer (or 'proximal') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parkerizing
Phosphate conversion coating is a chemical treatment applied to steel parts that creates a thin adhering layer of iron, zinc, or manganese phosphates to improve corrosion resistance or lubrication or as a foundation for subsequent coatings or painting. It is one of the most common types of conversion coating. The process is also called phosphate coating, phosphatization, phosphatizing, or phosphating. It is also known by the trade name Parkerizing, especially when applied to firearms and other military equipment. A phosphate coating is usually obtained by applying to the steel part a dilute solution of phosphoric acid, possibly with soluble iron, zinc, and/or manganese salts. The solution may be applied by sponging, spraying, or immersion. Phosphate conversion coatings can also be used on aluminium, zinc, cadmium, silver and tin. History The phosphatizing of firearms was discovered around 1910, when it was found that the surface of steel if changed to a phosphate acquires s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galvanic Corrosion
Galvanic corrosion (also called bimetallic corrosion or dissimilar metal corrosion) is an electrochemical process in which one metal corrodes preferentially when it is in electrical contact with another, different metal, when both in the presence of an electrolyte. A similar galvanic reaction is exploited in single-use battery cells to generate a useful electrical voltage to power portable devices. This phenomenon is named after Italian physician Luigi Galvani (1737–1798). A similar type of corrosion caused by the presence of an external electric current is called '' electrolytic corrosion''. Overview Dissimilar metals and alloys have different electrode potentials, and when two or more come into contact in an electrolyte, one metal (that is more reactive) acts as anode and the other (that is less reactive) as cathode. The electropotential difference between the reactions at the two electrodes is the driving force for an accelerated attack on the anode metal, which disso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Oxide
Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper based alloys, zinc, powdered metals, and silver solder. It is used to add mild corrosion resistance, for appearance, and to minimize light reflection. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax. Dual target magnetron sputtering (DMS) is used for preparing black oxide coatings. One of its advantages over other coatings is its minimal buildup. Ferrous material A standard black oxide is magnetite (FeO), which is more mechanically stable on the surface and provides better corrosion protection than red oxide (rust) FeO. Modern industrial approaches to forming black oxide include the hot and mid-temperature processes described below. Traditional methods are described in the article on Bluing (steel), bluing. They are of interest historically, and are also useful for hobbyists to form black oxide safely with little equipment and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetite
Magnetite is a mineral and one of the main iron ores, with the chemical formula . It is one of the iron oxide, oxides of iron, and is ferrimagnetism, ferrimagnetic; it is attracted to a magnet and can be magnetization, magnetized to become a permanent magnet itself. With the exception of extremely rare native iron deposits, it is the most magnetic of all the naturally occurring minerals on Earth. Naturally magnetized pieces of magnetite, called lodestone, will attract small pieces of iron, which is how ancient peoples first discovered the property of magnetism. Magnetite is black or brownish-black with a metallic luster, has a Mohs scale of mineral hardness, Mohs hardness of 5–6 and leaves a black streak (mineralogy), streak. Small grains of magnetite are very common in igneous rocks, igneous and metamorphic rocks. The chemical IUPAC name is iron(II,III) oxide and the common chemical name is ''ferrous-ferric oxide''. Properties In addition to igneous rocks, magnetite als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluing (steel)
Bluing, sometimes spelled as blueing, is a passivation process in which steel is partially protected against rust using a black oxide coating. It is named after the blue-black appearance of the resulting protective finish. Bluing involves an electrochemical conversion coating resulting from an oxidizing chemical reaction with iron on the surface selectively forming magnetite (), the black oxide of iron. In comparison, rust, the red oxide of iron (), undergoes an extremely large volume change upon hydration; as a result, the oxide easily flakes off, causing the typical reddish rusting away of iron. Black oxide provides minimal protection against corrosion, unless also treated with a water-displacing oil to reduce wetting and galvanic action. In colloquial use, thin coatings of black oxide are often termed "gun bluing", while heavier coatings are termed "black oxide". Both refer to the same chemical process for providing true gun bluing. Overview Various processes are used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Receiver (firearms)
In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing (engineering), housing for internal action (firearms), action components such as the hammer (firearms), hammer, bolt (firearms), bolt or breechblock, firing pin and extractor (firearms), extractor, and has screw thread, threaded interfaces for externally attaching ("receiving") components such as the gun barrel, barrel, stock (firearms), stock, trigger (firearms), trigger mechanism and iron sights, iron/sight (device)#Optical sights, optical sights. Some firearm designs, such as the AR-15 platform, feature receivers that have 2 separate sub-assemblies called the upper receiver which houses the barrel/trunnion, bolt components etc and the lower receiver (Trigger Mechanism Housing in some cases) that holds the fire control group, pistol grip, selector, stock etc. The receiver is often made of forged, machined, or stamped steel or aluminium. Ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disassembled Mauser Long Action
"Avengers Disassembled" is a 2004 fictional crossover, crossover storyline published by Marvel Comics involving the Avengers (comics), Avengers, Fantastic Four, Captain America, Spider-Man and Thor (Marvel Comics), Thor. The beginning of Brian Michael Bendis's ''Avengers'' run, it depicts the destruction of the existing traditional roster and the exile of several key members of the team. The storyline includes a number of subplots, some of which take place before and/or after the main events, which include other changes to the status quo: Iron Man once again closeting his secret identity, Spider-Man developing organic web-shooters (as in the contemporary Spider-Man (2002 film series), Sam Raimi film trilogy), and the death of Thor and Asgard in one final Ragnarok. The main story, ''Chaos'', ran in ''Avengers'' #500-503 and a special epilogue, ''Avengers Finale''. The series would lead to a massive relaunch of the Avengers family of titles: New Avengers, New Thunderbolts, Captain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
