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LR 300
The Z-M LR-300 is an American rifle designed by gunsmith Allan Zitta and manufactured by Z-M Weapons. The model name LR-300 stands for ''Light Rifle'' and 300 is for 300 meters, which is regarded by the manufacturer as the effective range of the rifle with a standard FMJ bullet. The design is based on the AR-15, M16 and C7 rifles, but has a unique semi-direct gas impingement system and a folding stock option. History The design was originally a stockless short-barreled pistol version of an AR-15 receiver that Allan Zitta used in target shooting competitions. It later went into commercial production as the ''Master Blaster'' in 1996. Zitta later developed it into a full rifle with a folding stock, and conversion kits have also been offered for AR-15 rifles. In 2008, the LR-300 was offered under the name Para Tactical Target Rifle (TTR) as a result of a joint collaboration between Para USA and ZM Weapons.American Rifleman , Para USA Tactical Target Rifle' Description The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sport Shooting
Sport pertains to any form of competitive physical activity or game that aims to use, maintain, or improve physical ability and skills while providing enjoyment to participants and, in some cases, entertainment to spectators. Sports can, through casual or organized participation, improve participants' physical health. Hundreds of sports exist, from those between single contestants, through to those with hundreds of simultaneous participants, either in teams or competing as individuals. In certain sports such as racing, many contestants may compete, simultaneously or consecutively, with one winner; in others, the contest (a ''match'') is between two sides, each attempting to exceed the other. Some sports allow a "tie" or "draw", in which there is no single winner; others provide tie-breaking methods to ensure one winner and one loser. A number of contests may be arranged in a tournament producing a champion. Many sports leagues make an annual champion by arranging games in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SIG MCX
The SIG MCX is a family of firearms designed and manufactured by SIG Sauer, produced in both selective fire and semi-automatic only models, and features a short-stroke gas piston system, which is inherited from the earlier SIG MPX submachine gun. The MCX is available in rifle, carbine, short-barreled rifle, and pistol configurations (the latter configuration generally conforming to the definition of a compact carbine but for taking a pistol brace rather than a buttstock). The rifle was further developed into the SIG MCX Spear, which was adopted in its .277 Fury chambering as the XM5 by the U.S. Army in 2022. History The SIG MCX was first introduced at SHOT Show 2015. The rifle was originally designed by SIG USA, the subsidiary of SIG Sauer based in New Hampshire. In 2016, SIG recalled some of the rifles that had the first-generation bolt carrier group. A SIG MCX was used in the 2016 Orlando nightclub shooting, which at the time was the deadliest mass shooting in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Payday 2
''Payday 2'' is a Cooperative video game, cooperative first-person shooter video game developed by Overkill Software and published by 505 Games. The game is a sequel to 2011's ''Payday: The Heist''. It was released in August 2013 for Microsoft Windows, Windows, PlayStation 3 and Xbox 360. An improved version of the game, subtitled ''Crimewave Edition'', was released for PlayStation 4 and Xbox One in June 2015. A version for the Nintendo Switch was released in February 2018. Two years after the events of the previous game, the Payday gang comes to the Washington, D.C. metropolitan area to perform another heisting spree. The player takes control of one of the gang's twenty-two members and can perform heists alone, or with up to three teammates. The player can participate in a variety of heists, including but not limited to robberies of banks, shops and Armored car (valuables), armored cars, and producing and distributing narcotics. The game differs from the previous by allowing much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shadow Of Chernobyl
A shadow is a dark area where light from a light source is blocked by an opaque object. It occupies all of the three-dimensional volume behind an object with light in front of it. The cross section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light. Point and non-point light sources A point source of light casts only a simple shadow, called an "umbra". For a non-point or "extended" source of light, the shadow is divided into the umbra, penumbra, and antumbra. The wider the light source, the more blurred the shadow becomes. If two penumbras overlap, the shadows appear to attract and merge. This is known as the shadow blister effect. The outlines of the shadow zones can be found by tracing the rays of light emitted by the outermost regions of the extended light source. The umbra region does not receive any direct light from any part of the light source and is the darkest. A viewer located in the umbra region cannot directly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust (video Game)
''Rust'' is a multiplayer-only survival video game developed by Facepunch Studios. Rust was first released in early access in December 2013 and received its full release in February 2018. ''Rust'' is available on Windows and macOS. Console versions for PlayStation 4 and Xbox One developed in conjunction with Double Eleven were released in May 2021. ''Rust'' was initially created as a clone of '' DayZ'', a popular mod for '' ARMA 2'', with crafting elements akin to those in '' Minecraft''. The objective of ''Rust'' is to survive in the wilderness using gathered or stolen materials. Players must successfully manage their hunger, thirst, and health, or risk dying. Despite the presence of hostile animals such as bears and wolves, the primary threat to the player is other players due to the game being solely multiplayer. Combat is accomplished through firearms and various weapons, such as bows. In addition, vehicles controlled by non-player characters will occasionally ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nylatron
Nylatron is a tradename for a family of nylon plastics, typically filled with molybdenum disulfide lubricant powder. It is used to cast plastic parts for machines, because of its mechanical properties and wear-resistance. Nylatron is a brand name of Mitsubishi Chemical Advanced Materials, Inc. and was originally developed and manufactured by Nippon Polypenco Limited. Nylatron is used in several applications such as: * rotary lever actuators where unusual shapes are required * heavy-duty caster wheels, normally as a replacement for cast iron or forged steel * plain bearing material, especially in screw conveyor A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a "''flighting''", usually within a tube, to move liquid or granular materials. They are used in many bulk handling industries. Screw conveyor ... applications References External links Matweb datasheets Polymers {{polymer-stub ... [...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] |
Rifling
In firearms, rifling is machining helical grooves into the internal (bore) surface of a gun's barrel for the purpose of exerting torque and thus imparting a spin to a projectile around its longitudinal axis during shooting to stabilize the projectile longitudinally by conservation of angular momentum, improving its aerodynamic stability and accuracy over smoothbore designs. Rifling is characterized by its twist rate, which indicates the distance the rifling takes to complete one full revolution, such as "1 turn in 10 inches" (1:10 inches), "1 turn in 254 mm" ("1:254 mm" or "1:25.4 cm)", or the like. Normally, an experienced shooter can infer the units of measurement from the numbers alone. A shorter distance indicates a faster twist, meaning that for a given velocity the projectile will rotate at a higher spin rate. The combination of length, weight, and shape of a projectile determines the twist rate needed to gyroscopically stabilize it &ndash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picatinny Rail
The Picatinny rail ( or ), or Pic rail for short, also known as a MIL-STD-1913 rail, 1913 rail or STANAG 2324 rail (cancelled), is a military standard rail interface system that provides a mounting platform for firearm accessories. It was originally used for mounting of scopes atop the receivers of larger caliber rifles. Once established, its use expanded to also attaching other accessories, such as: iron sights, tactical lights, laser aiming modules, night vision devices, reflex sights, holographic sights, foregrips, bipods, slings and bayonets. An updated version of the rail is adopted as a NATO standard as the STANAG 4694 NATO Accessory Rail. Significance Because of their many uses, Picatinny rails and accessories have replaced iron sights in the design of many firearms and available as aftermarket add-on parts for most actions that do not have them integrated, and they are also on the undersides of semi-automatic pistol frames and grips. When adding a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Para USA
Para USA (Para) was an American-owned firearms manufacturer. It was the successor to Para-Ordnance, founded in Canada in 1985. It specialized in making M1911-style semi-automatic pistols and components. The company was acquired by Remington Outdoor Company in 2012. In 2015, the Para brand ceased production and was folded into Remington. History Para-Ordnance was founded in Canada in 1985 by two childhood friends, Ted Szabo and Thanos Polyzos. Szabo was born in Hungary and his family fled the country when the Soviets invaded during the Hungarian Revolution in 1956. Polyzos was born in Greece and later emigrated to Canada. On March 28, 2007, Ted Szabo died at the age of 60. The company's first product was a plastic paintball gun, the Model 85 "Dye Marking Tactical Machine Pistol", designed for police and military training purposes. Para-Ordnance Mfg Inc. had a factory in Markham, Ontario, Canada. When last reported, the company was estimated to have an annual revenue of over 9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colt Canada C7
The Colt Canada C7 is a Canadian family of military rifles, manufactured by Colt Canada (formerly Diemaco prior to 2005), having similar design and function to the Colt M16A3. The C7 and its variants have been adopted as the standard issue rifle by the militaries of Canada, Norway (special forces only), Denmark and the Netherlands. Following trials, C8 variants are general issue firearms for the United Kingdom's Special Forces. It is also the standard firearm of the Dutch air force (C8A1) and other specialist users within the Dutch and British militaries. It has been utilized in various combat deployments by Canadian, British, Norwegian, Dutch, and Danish forces in Afghanistan, Iraq, and Mali. C7 The development of the C7 assault rifle paralleled that of the M16A2 by Colt. A Canadian Forces liaison officer worked with the United States Marine Corps in the M16A1 Product Improvement Program and relayed information to Canada's Rifle Replacement Program Office. The C7 is muc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
