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Barrett M468
The Barrett M468 is a variant of the M4 Carbine, rechambered for a heavier and larger 6.8mm bullet for increased terminal performance. The designation of M468 stands for an M4 carbine chambered for the 6.8mm SPC cartridge. It was an attempt to create an optimal Special Operations close-to-medium range carbine for Close Quarter Battle (CQB). A 12-inch barreled micro-carbine and 16-inch barreled carbine version were created. Barrett ceased manufacturing the rifle in 2010. Accessories Furniture The standard M468 uses a regular forend whereas the M468A1 comes with an ARMS ''Selective Integrated Rail'' (SIR) accessory rail system with integral "flat-top" Picatinny Rail scope mount and 4-position forend, and a detachable ARMS Back Up Iron Sight folding rear iron sight. The Barrett gas block in front has an integral forward-folding iron front sight. The rifle can use either a solid M16A2-style stock or an optional M4-style 4-position collapsible stock and used an M16A2-style pistol grip. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrett REC7
The Barrett REC7 (designation stands for "reliability-enhanced carbine") is an American firearm manufactured as a selective-fire fully-automatic and semi-automatic rifle by Barrett Firearms. It is an M4 carbine utilizing a short-stroke gas piston system. REC7 is available in either 5.56×45mm NATO or 6.8mm Remington SPC. The REC7 is Barrett’s second AR-pattern rifle chambered for the 6.8mm Remington SPC cartridge, the first being the Barrett M468 rifle. The 6.8 SPC-chambered M468 rifle employed the same direct gas-impingement system as the M4. Design and features Unlike possible replacements for the M16/M4 such as the now canceled XM8, the REC7 is not an entirely new rifle, instead it is made up of an upper receiver that is attached to an M16/M4 lower receiver and is compatible with many accessories intended for the M16/M4 family. It can also be mated to M16/M4 lower receivers currently in the possession of the US military. The rifle uses a short-stroke gas piston mechanism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five major unincorporated territories, nine United States Minor Outlying Islands, Minor Outlying Islands, and 326 Indian reservations. The United States is also in Compact of Free Association, free association with three Oceania, Pacific Island Sovereign state, sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Palau, Republic of Palau. It is the world's List of countries and dependencies by area, third-largest country by both land and total area. It shares land borders Canada–United States border, with Canada to its north and Mexico–United States border, with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrett Firearms Manufacturing
Barrett Firearms Manufacturing is an American manufacturer of firearms and ammunition located in Christiana, Tennessee. It was founded in 1982 by Ronnie G. Barrett for the purpose of building semi-automatic rifles chambered for the .50 BMG (12.7×99mm NATO) ammunition, originally developed for and used in M2 Browning machine guns. Barrett began this work in the early 1980s, and the first working rifles were available in 1982, hence the designation M82. Barrett personally designed every part of the weapon. He marketed the weapon and mass-produced it utilizing personal funds. He continued to develop the rifle through the 1980s, and developed the improved M82A1 rifle by 1986. History Barrett introduced the M82 in 1982 but did not have any significant sales until 1989. These first large sales were to Sweden. Soon afterward, the M82 was purchased by the United States armed forces, and it was deployed in the Gulf War. Today the company has contracts with dozens of countries t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Impingement
Direct impingement is a type of gas operation for a firearm that directs gas from a fired cartridge indirectly (through the barrel, through a gas block, and then through a gas tube) into the bolt carrier or slide assembly to cycle the action. Firearms using direct impingement are theoretically lighter, more accurate, and less expensive than firearms using cleaner and cooler gas piston systems. Advantages Firearms featuring a direct impingement design are, in principle, capable of being constructed so as to be slightly lighter than their piston operated counterparts (due to the lack of any additional hardware other than the gas tube, which is required to channel the gas from the barrel back towards the action). Unlike conventional gas-operated firearms, direct impingement does away with a separate gas cylinder, piston, and operating rod assembly. High-pressure gas acts directly upon the bolt and carrier, thereby saving weight, lowering manufacturing costs, and reducing the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muzzle Brake
A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. Barrels with an integral muzzle brake are often said to be ported. The concept of a muzzle brake was first introduced for artillery. It was a common feature on many anti-tank guns, especially those mounted on tanks, in order to reduce the area needed to take up the strokes of recoil and kickback. They have been used in various forms for rifles and pistols to help control recoil and the rising of the barrel that normally occurs after firing. They are used on pistols for practical pistol competitions, and are usually called compensators in this context.STI article on Limcat Unde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ratchet (device)
A ratchet (occasionally spelled rachet) is a mechanical device that allows continuous linear or rotary motion in only one direction while preventing motion in the opposite direction. Ratchets are widely used in machinery and tools. The word ''ratchet'' is also used informally to refer to a ratcheting socket wrench. __TOC__ Theory of operation A ratchet consists of a round gear or a linear rack with teeth, and a pivoting, spring-loaded finger called a ''pawl'' (or ''click'', in clocks and watches) that engages the teeth. The teeth are uniform but are usually asymmetrical, with each tooth having a moderate slope on one edge and a much steeper slope on the other edge. When the teeth are moving in the unrestricted (i.e. forward) direction, the pawl easily slides up and over the gently sloped edges of the teeth, with a spring forcing it (often with an audible 'click') into the depression between the teeth as it passes the tip of each tooth. When the teeth move in the opposite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soldier Of Fortune Magazine
''Soldier of Fortune'' (''SOF''), subtitled ''The Journal of Professional Adventurers'', is a daily web magazine published by Susan Katz Keating. It began as a monthly U.S. periodical published from 1975 to 2016 as a magazine devoted to worldwide reporting of wars, including conventional warfare, low-intensity warfare, counter-insurgency, and counter-terrorism. It was published by Omega Group Ltd., based in Boulder, Colorado. In May 2022, founder Robert K. Brown announced that the publication had been sold to a longtime contributor, author and security journalist Susan Katz Keating, who grew up around conflict during The Troubles in Northern Ireland. History ''Soldier of Fortune'' magazine was founded in 1975, by Lieutenant Colonel, U.S. Army Reserve, (Ret.) Robert K. Brown, a Green Beret who served with Special Forces in Vietnam. After retiring from active duty, Brown began publishing a “circular”, magazine-type publication with few pages which contained information on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M4 Carbine
The M4 carbine (officially Carbine, Caliber 5.56 mm, M4) is a 5.56×45mm NATO, gas-operated, magazine-fed carbine developed in the United States during the 1980s. It is a shortened version of the M16A2 assault rifle. The M4 is extensively used by the United States Armed Forces, with decisions to largely replace the M16 rifle in United States Army (starting 2010) and United States Marine Corps (USMC) (starting 2016) combat units as the primary infantry weapon and service rifle. The M4 has been adopted by over 60 countries worldwide, and has been described as "one of the defining firearms of the 21st century". Since its adoption in 1994, the M4 has undergone over 90 modifications to improve the weapon's ergonomics and modularity, including: the M4A1, which strengthened the barrel and removed the burst-fire option; the SOPMOD, an accessory kit containing optical attachments; and the underbarrel M203 grenade launcher. In April 2022, the U.S. Army selected the SIG MCX SP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrett Firearms
Barrett Firearms Manufacturing is an American manufacturer of firearms and ammunition located in Christiana, Tennessee. It was founded in 1982 by Ronnie G. Barrett for the purpose of building semi-automatic rifles chambered for the .50 BMG (12.7×99mm NATO) ammunition, originally developed for and used in M2 Browning machine guns. Barrett began this work in the early 1980s, and the first working rifles were available in 1982, hence the designation M82. Barrett personally designed every part of the weapon. He marketed the weapon and mass-produced it utilizing personal funds. He continued to develop the rifle through the 1980s, and developed the improved M82A1 rifle by 1986. History Barrett introduced the M82 in 1982 but did not have any significant sales until 1989. These first large sales were to Sweden. Soon afterward, the M82 was purchased by the United States armed forces, and it was deployed in the Gulf War. Today the company has contracts with dozens of countries t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ArmaLite AR-10 Derivatives
ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California. Many of its products, as conceived by chief designer Eugene Stoner, relied on unique foam-filled fiberglass butt/stock furniture, and a composite barrel using a steel liner inside an aluminum sleeve, including the iconic AR15/M16 family. While the original ArmaLite ceased business in the 1980s, the brand was revived in 1996, by Mark Westrom. Originating as the light firearms division of Fairchild Engine and Airplane Corporation, ArmaLite was formally incorporated in 1954. Stoner's first design, the AR-1 Parasniper (dating from 1952), was relatively unsuccessful. However, in 1956, when ArmaLite competed in a contest for an aircrew survival rifle, its AR-5 and AR-7 designs were put into production and adopted by elements of the US military. The following year, ArmaLite also competed for the contract for a new main US combat rifle, in the NATO standard 7.62 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
