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Laser Sight (firearms)
A laser sight is a device attached or integral to a firearm to aid target acquisition. Unlike optical and iron sights where the user looks through the device to aim at the target, laser sights project a beam onto the target, providing a visual reference point. Although lasers in the visible part of the spectrum are most common, invisible infrared (IR) lasers may be used in conjunction with a night vision device. As they are offset from the barrel, laser sights need to be zeroed in, much like a conventional sight, so that the beam intercepts the point of impact at a chosen distance. Devices may include one or both types of laser, with some models also incorporating a rangefinder, flashlight, or IR illuminator. Laser sights may be attached to the existing sighting mechanism, the trigger guard, via a rail system, or can be integrated into replacement components such as the guide rod or grip plates. Some variants are also incorporated into other attachments such as foregrips ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAR 21 Rifle
The SAR 21 ("Singapore Assault Rifle - 21st Century") is a bullpup assault rifle designed and manufactured in Singapore, chambered for the 5.56×45mm NATO, 5.56x45mm cartridge. First revealed and subsequently adopted by the Singapore Armed Forces (SAF) as its standard service weapon in 1999, it was designed and developed over a four-year period to replace the locally license-built M16 rifle#Others, M16S1 by the Ministry of Defence (Singapore), Ministry of Defence (MINDEF), Singapore Army and the former ST Kinetics, Chartered Industries of Singapore (CIS), presently ST Kinetics, ST Engineering Land Systems. Many of its design features are directly intended to address the weaknesses of the M16S1 as encountered operationally by some infantrymen. The rifle is being sold for export use aside from domestic use. In the United States, it was marketed by ST Kinetics via its American subsidiary, VT Systems. History Since the mid-80s, the SAF had an outstanding requirement to replace the M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taser
Taser (stylized in all caps) is a line of handheld conducted energy devices (CED) sold by Axon Enterprise (formerly Taser International). The device fires two small barbed darts intended to puncture the skin and remain attached to the target until removed by the user of the device. The darts are connected to the main unit by thin wires that achieve a high dielectric strength and durability given the extremely high-voltage electric current they conduct (typically 50,000 volts, or 2,000 volts under load), which can be delivered in short-duration pulses from a core of copper wire in the main unit. This enormous rush of current into the body produces effects ranging from localized pain to strong involuntary long muscle contractions, causing " neuromuscular incapacitation" (NMI), based on the mode of use (tasing frequency and environmental factors) and connectivity of the darts. When successfully used, the target is said to have been " tased". The first Taser conducted energy we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solid-state Laser
A solid-state laser is a laser that uses a active laser medium, gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. Semiconductor-based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers, called laser diodes. Solid-state media Generally, the active medium of a solid-state laser consists of a glass or crystalline "host" material, to which is added a "dopant" such as neodymium, chromium, erbium, thulium or ytterbium.Z. Su, J. D. Bradley, N. Li, E. S. Magden, Purnawirman, D. Coleman, N. Fahrenkopf, C. Baiocco, T. Adam, G. Leake, D. Coolbaugh, D. Vermeulen, and M. R. Watts (2016"Ultra-Compact CMOS-Compatible Ytterbium Microlaser" ''Integrated Photonics Research, Silicon and Nanophotonics 2016'', IW1A.3. Many of the common dopants are rare-earth elements, because the excited states of such ions are not strongly coupled with the thermal vibrations of their crystal lattices (phonons), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMT Hardballer
The AMT Hardballer is a series of pistols that are part of the 1911 platform (based on the .45 ACP M1911) made by Arcadia Machine & Tool (AMT) from 1977 to 2002. The Hardballer was the first entirely stainless steel 1911 pattern pistol. Other features included adjustable rear sights and a lengthened grip safety. The pistol was notably featured in a variety of media including ''Hitman Contract killing (also known as murder-for-hire) is a form of murder or assassination in which one party hires another party to kill a targeted person or people. It involves an illegal agreement which includes some form of compensation, moneta ...'' and '' Terminator''. Overview The Hardballer derives its name from round-nose hardball G.I. ammunition (solid 230 grain full metal jacketed bullets). This is the round the pistol was designed to shoot. The Hardballer series of pistols all share a brushed stainless steel finish and a wide target style trigger with adjustable trigger stop. The la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Terminator
''The Terminator'' is a 1984 American science fiction action film directed by James Cameron, written by Cameron and Gale Anne Hurd and produced by Hurd. It stars Arnold Schwarzenegger as the Terminator, a cybernetic assassin sent back in time from 2029 to 1984 to assassinate Sarah Connor (Linda Hamilton), whose unborn son will one day save mankind from extinction by Skynet, a hostile artificial intelligence, in a post-apocalyptic future. Kyle Reese ( Michael Biehn) is a soldier sent back in time to protect Sarah. The screenplay is credited to Cameron and Hurd, while co-writer William Wisher Jr. received an "additional dialogue" credit. Cameron devised the premise of the film from a fever dream he experienced during the release of his first film, '' Piranha II: The Spawning'' (1982), in Rome, and developed the concept in collaboration with Wisher. He sold the rights to the project to fellow New World Pictures alumna Hurd on the condition that she would produce the film ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Law Enforcement
Law enforcement is the activity of some members of the government or other social institutions who act in an organized manner to enforce the law by investigating, deterring, rehabilitating, or punishing people who violate the rules and norms governing that society. The term encompasses police, courts and corrections. These three components of the criminal justice system may operate independently of each other or collectively through the use of record sharing and cooperation. Throughout the world, law enforcement are also associated with protecting the public, life, property, and keeping the peace in society. The concept of law enforcement dates back to ancient times, and forms of law enforcement and police have existed in various forms across many human societies. Modern state legal codes use the term law enforcement officer or peace officer to include every person vested by the legislating state with police power or authority; traditionally, anyone sworn or badged who can arrest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a distinct military uniform. They may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of a military is usually defined as defence of their state and its interests against external armed threats. In broad usage, the terms "armed forces" and "military" are often synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include other paramilitary forces such as armed police. Beyond warfare, the military may be employed in additional sanctioned and non-sanctioned functions within the state, including internal security threats, crowd control, promotion of political agendas, emergency services and reconstruct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Forces
Special forces or special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equipped forces using unconventional techniques and modes of employment". Special forces emerged in the early 20th century, with a significant growth in the field during World War II, when "every major army involved in the fighting" created formations devoted to special operations behind enemy lines. Depending on the country, special forces may perform functions including Airborne forces, airborne operations, counter-insurgency, counter-terrorism, foreign internal defense, Covert operations, covert ops, Direct action (military), direct action, Hostage crises, hostage rescue, high-value targets/Manhunt (military), manhunt, intelligence, surveillance, target acquisition, and reconnaissance, intelligence operations, Mobility (military), mobility o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SWAT
A SWAT (''Special Weapons and Tactics'') team is a generic term for a police tactical unit within the United States, though the term has also been used by other nations. SWAT units are generally trained, equipped, and deployed to resolve "high-risk situations", often those regular police units are not trained or equipped to handle, such as shootouts, standoffs, raids, hostage-takings, and terrorism. SWAT units are equipped with specialized weapons and equipment not normally issued to regular police units, such as automatic firearms, high-caliber sniper rifles, stun grenades, body armor, ballistic shields, night-vision devices, and armored vehicles, among others. SWAT units are often trained in special tactics such as close-quarters combat, door breaching, crisis negotiation, and de-escalation. The first SWAT units were formed in the 1960s to handle riot control and violent confrontations with criminals. The number and usage of SWAT units increased in the 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colt Trooper
The Colt Trooper is a medium Receiver (firearms), frame, double-action revolver featuring a six-round cylinder, Chamber (firearms), chambered for .22 Long Rifle, .22 Winchester Magnum Rimfire, .38 Special, and .357 Magnum caliber Cartridge (firearms), cartridges. Designed as a less expensive alternative to the upscale Colt .357 and the later Colt Python and Colt King Cobra, it was marketed to Police, law enforcement agencies as well as civilians. Development and history Introduced to the firearms market by the Colt's Manufacturing Company in 1953, the Trooper and its high-end cousin, the .357 Magnum, were introduced with the intention of addressing the medium frame revolver market, as law enforcement officers had long complained about the weight of earlier models. The two guns were seen as ideal in size and handling characteristics for the .38 Special and its big brother the .357. Offered as an alternative and competitor to Smith & Wesson’s Smith & Wesson Model 28, Model 28 "High ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
357 Magnum
The .357 Smith & Wesson Magnum, .357 S&W Magnum, .357 Magnum, or 9×33mmR (as it is known in unofficial metric designation) is a smokeless powder cartridge with a bullet diameter. It was created by Elmer Keith, Phillip B. Sharpe, and Douglas B. Wesson of firearm manufacturers Smith & Wesson and Winchester. The .357 Magnum cartridge is notable for its highly effective terminal ballistics. The .357 Magnum cartridge is based upon Smith & Wesson's earlier .38 Special cartridge. It was introduced in 1935, and its use has since become widespread. Design The .357 Magnum was collaboratively developed over a period in the early to mid-1930s by a group of individuals as a direct response to Colt's .38 Super Automatic. At the time, the .38 Super was the only American pistol cartridge capable of defeating automobile cover and the early ballistic vests that were just beginning to emerge in the Interwar period. Tests at the time revealed that those vests defeated any handgun bullet trav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
