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3D Printed Guns
A 3D printed firearm is a firearm that is primarily produced with a 3D printer. They can be classified by the type of 3D printers used: plastic (desktop fused filament fabrication), metal (industrial selective laser melting), or both. While plastic ones are usually used as improvised firearms that evade gun control, 3D-printed metal guns are more commonly thought as a way for legitimate gun manufacturers to exceed traditional design limitations.New Zealand leads the way in Titanium Additive Manufacturing Metal Additive Manufacturing, May 12, 2014. Although it is possible to create fully-plastic guns, such firearms tend to be extremely short ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DD Liberator
DD, dd, or other variants may refer to: Arts and entertainment *"D.D.", a track on mixtape ''Echoes of Silence'' by The Weeknd *DD (character), a character in ''The Saga of Seven Suns'' novels by Kevin J. Anderson *DD National or DD1, an Indian national television channel *Dancing Dolls, a Japanese all-female pop group *Daredevil (Marvel Comics character), a Marvel Comics character **Matt Murdock (Marvel Cinematic Universe), the Marvel Cinematic Universe counterpart * Decorative Designers *Donegal Daily, an Irish news website *Doordarshan, a public service broadcaster in India *Erann DD, a Danish singer and songwriter *DD, the production code for the 1966 ''Doctor Who'' serial ''The Tenth Planet'' Business * DuPont, which trades shares on the New York Stock Exchange as DD * Dunkin' Donuts, a company Military * DD tank, an amphibious tank * Dishonorable discharge, a punitive discharge in the U.S. military * DD, the U.S. Navy hull classification for destroyers * DD Form 214 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pistol Brace
A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing mechanism are attached. The stock also provides a means for the shooter to firmly brace the gun and easily aim with stability by being held against the user's shoulder when shooting the gun, and helps to counter muzzle rise by transmitting recoil straight into the shooter's body. The tiller of a crossbow is functionally the equivalent of the stock on a gun. History and etymology The term stock in reference to firearms dates to 1571 is derived from the Germanic word ''Stock'', meaning tree trunk, referring to the wooden nature of the gunstock. Early hand cannons used a simple stick fitted into a socket in the breech end to provide a handle. The modern gunstock shape began to evolve with the introduction of the arquebus, a matchlock with a longer barrel and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M1911 Pistol
The M1911 (Colt 1911 or Colt Government) is a single-action, recoil-operated, semi-automatic pistol chambered for the .45 ACP cartridge. The pistol's formal U.S. military designation as of 1940 was ''Automatic Pistol, Caliber .45, M1911'' for the original model adopted in March 1911, and ''Automatic Pistol, Caliber .45, M1911A1'' for the improved M1911A1 model which entered service in 1926. The designation changed to ''Pistol, Caliber .45, Automatic, M1911A1'' in the Vietnam War era. Designed by John Browning, the M1911 is the best-known of his designs to use the short recoil principle in its basic design. The pistol was widely copied, and this operating system rose to become the preeminent type of the 20th century and of nearly all modern centerfire pistols. It is popular with civilian shooters in competitive events such as the International Defensive Pistol Association and International Practical Shooting Confederation. The U.S. military procured around 2.7 million M1911 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid Concepts
Solid Concepts, Inc. is a custom manufacturing company engaged in engineering, manufacturing, production, and prototyping. The company is headquartered in Valencia, California, in the Los Angeles County area, with six other facilities located around the United States. Solid Concepts is an additive manufacturing service provider as well as a major manufacturer of business products, aerospace, unmanned systems, medical equipment and devices, foundry cast patterns, industrial equipment and design, and transportation parts. The company was founded in 1991, in the birthplace of Stereolithography. The company derives its name from its original focus on rapid prototyping through 3D printing (or additive manufacturing) with the idea that virtual concepts can be printed into solid reality, as the technologies that founded the company are capable of directly reading CAD data and creating parts. Solid Concepts markets its products under its main name, as well as under the website-only offsho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anonymity
Anonymity describes situations where the acting person's identity is unknown. Some writers have argued that namelessness, though technically correct, does not capture what is more centrally at stake in contexts of anonymity. The important idea here is that a person be non-identifiable, unreachable, or untrackable. Anonymity is seen as a technique, or a way of realizing, a certain other values, such as privacy, or liberty. Over the past few years, anonymity tools used on the dark web by criminals and malicious users have drastically altered the ability of law enforcement to use conventional surveillance techniques. An important example for anonymity being not only protected, but enforced by law is the vote in free elections. In many other situations (like conversation between strangers, buying some product or service in a shop), anonymity is traditionally accepted as natural. There are also various situations in which a person might choose to withhold their identity. Acts of cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deterrence Dispensed
Deterrence Dispensed or DetDisp is a decentralized, online collective that promotes and distributes open-source 3D printed firearms, gun parts, and handloaded cartridges. The group describes itself as aligned with freedom of speech and copyleft movements. DetDisp is best known for developing and releasing the FGC-9, a semi-automatic 3D-printed carbine requiring no regulated gun parts. Despite being recognized as a threat by various law enforcement agencies,archive)/ref> the group has to date been unchallenged in national or state courts.archive)/ref> History Deterrence Dispensed is a loose group of 3D-printed gun advocates. Among members of the group are an American who goes by the pseudonym "Ivan the Troll", and a Kurd " JStark1809". In February 2019, the group chose the name "Deterrence Dispensed" as a reference to the 3D printed firearms company Defense Distributed. The group has claimed thousands of members, many of whom live in jurisdictions that ban unlicensed firearm p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decentralized
Decentralization or decentralisation is the process by which the activities of an organization, particularly those regarding planning and decision making, are distributed or delegated away from a central, authoritative location or group. Concepts of decentralization have been applied to group dynamics and management science in private businesses and organizations, political science, law and public administration, economics, money and technology. History The word "''centralisation''" came into use in France in 1794 as the post-Revolution French Directory leadership created a new government structure. The word "''décentralisation''" came into usage in the 1820s. "Centralization" entered written English in the first third of the 1800s; mentions of decentralization also first appear during those years. In the mid-1800s Tocqueville would write that the French Revolution began with "a push towards decentralization... ut became,in the end, an extension of centralization."Vivien A. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arms Export Control Act
The Arms Export Control Act of 1976 (Title II of , codified at ) gives the President of the United States the authority to control the import and export of defense articles and defense services. The H.R. 13680 legislation was passed by the 94th Congressional session and enacted into law by the 38th President of the United States Gerald R. Ford on June 30, 1976. The Act of Congress requires international governments receiving weapons from the United States to use the armaments for legitimate self-defense. Consideration is given as to whether the exports "would contribute to an arms race, aid in the development of weapons of mass destruction, support international terrorism, increase the possibility of outbreak or escalation of conflict, or prejudice the development of bilateral or multilateral arms control or nonproliferation agreements or other arrangements." The Act also places certain restrictions on American arms traders and manufacturers, prohibiting them from the sale of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DEFCAD
DEFCAD, Inc. is an American startup that has created a search engine and web portal for designers and hobbyists to find and develop 3D printable and other CAD models online. History Founding When Makerbot Industries removed firearms-related 3D Printable files at the public repository Thingiverse in December 2012, open source software entrepreneurs launched DEFCAD as a companion site to publicly host the removed files. Public and community submissions to DEFCAD rose quickly, and in March 2013, at the SXSW Interactive festival, DEFCAD was announced as a repurposed and expanded site that would serve as a 3D search engine and development hub. DEFCAD has been called "The Pirate Bay of 3D Printing" and "the anti-Makerbot". Community DEFCAD began as a repository where users could upload and download CAD models, but quickly became a community with the addition of an IRC channel and public forums. The site has had over 2,500 community users and offered access to over 100,000 models i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of State
The United States Department of State (DOS), or State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other nations, its primary duties are advising the U.S. president on international relations, administering diplomatic missions, negotiating international treaties and agreements, and representing the United States at the United Nations conference. Established in 1789 as the first administrative arm of the U.S. executive branch, the State Department is considered among the most powerful and prestigious executive agencies. It is headed by the secretary of state, who reports directly to the U.S. president and is a member of the Cabinet. Analogous to a foreign minister, the secretary of state serves as the federal government's chief diplomat and representative abroad, and is the first Cabinet official in the order of precedence and in the pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AR-15
An AR-15-style rifle is any lightweight semi-automatic rifle based on the Colt AR-15 design. The original ArmaLite AR-15 is a scaled-down derivative of Eugene Stoner's ArmaLite AR-10 design. The then Fairchild Engine and Airplane Corporation division ArmaLite sold the patent and trademarks to Colt's Manufacturing Company in 1959. After most of Colt's patents for the Colt AR-15 expired in 1977, many firearm manufacturers began to produce copies of the Colt AR-15 under various names. While the patents are expired, Colt retained the trademark of the AR-15 and is the sole manufacturer able to label their firearms as ''AR-15''. The "AR" in Colt AR-15 stands for "ArmaLite Rifle", not " assault rifle". The Federal Assault Weapons Ban restricted the sale of the Colt AR-15 and some derivatives in the United States from 1994 to 2004, although it did not affect rifles with fewer listed features. After the term modern sporting rifles was coined in 2009 by the US National Shooting Sports F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
