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202:, which will fire a single shot when 4.0 - 7.1 kg (8.8 – 15.4 lbs.) of weight is exerted on the trigger, and then become fully automatic when over 7.1 kg (15.4 lbs.) of weight is applied. This is useful for emergency situations where a rapid volley of rounds is more effective for suppressing a close enemy rather than a single-round burst (multiple single shots with a trigger pull for each round).
117:. The BAR and its subsequent designs incorporated a variety of selective-fire functions. The first design (M1918) is a selective-fire, air-cooled automatic rifle that used a trigger mechanism with a fire selector lever that enabled operating in either semi-automatic or fully automatic firing modes. The selector lever is located on the left side of the
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switch, which varies depending on the weapon's design. Some selective-fire weapons have burst fire mechanisms to limit the maximum number of shots fired automatically in this mode. The most common limits are two or three rounds per trigger pull. Fully automatic fire refers to the ability for a weapon
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permits more efficient use of rounds to be fired for specific needs, versus having a single mode of operation, such as fully automatic, thereby conserving ammunition while maximizing on-target accuracy and effectiveness. This capability is most commonly found on military weapons of the 20th and 21st
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after each fired round, but requires the trigger be released and pulled again before firing the next round. This allows for rapid and (in theory) aimed fire. In some weapons, the selection is between different rates of automatic fire and/or varying burst limiters. The selection is often by a small
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Early attempts at this technology were hindered by one or both of two obstacles: over-powerful ammunition and mechanical complexity. The latter led to excessive weight and unreliability in the firearm. One of the earliest designs dates to just before the end of the 19th century with the development
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Some selective-fire weapons offer a burst mode as the second option, where each pull of the trigger automatically fires a predetermined number of rounds (generally two or three), but will not fire any more until the trigger is released and pulled again. The current U.S. standard
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special operations personnel) fires single shots, three-round-bursts, and automatically. A special variant uses a two-round-burst to minimize the chances of missing with a third round. Some automatic cannons have larger burst limiters to coincide with higher rates of fire.
158:. "The principle of this weapon -- the reduction of muzzle impulse to get useful automatic fire within actual ranges of combat -- was probably the most important advance in small arms since the invention of smokeless powder."
222:. In this design, it retains the count of previously fired rounds and may fire fewer than three rounds. Other designs reset the count with each trigger pull, allowing a uniform three-round burst as long as rounds remain.
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and is simultaneously the manual safety (selector lever in the "S" position – weapon is "safe", "F" – "Fire", "A" – "Automatic" fire). The next version (M1918A1) had a unique rate-of-fire reducer mechanism purchased from
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to fire continuously until either the feeding mechanism is emptied or the trigger is released. Semi-automatic refers to the ability to fire one round per trigger pull.
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has four modes: safe (at which the rifle cannot be fired; S), one round (1), three-round burst (3) and full automatic (obscured by the switch lever).
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M16 Rifle Case Study. Prepared for the
President's Blue Ribbon Defense Panel. March 16, 1970. By Richard R. Hallock, Colonel U.S. Army (Retired)
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that was the first of its kind to see major deployment and is considered by many historians to be the first modern
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created by
Italian Army officer Amerigo Cei-Rigotti that had selective-fire capability (single shots or burst).
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rotating switch often integrated with the safety catch or a switch separate from the safety, as in the
British
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Selective-fire weapons, by definition, have a semi-automatic mode, where the weapon automatically reloads the
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with two rates of automatic fire. This reducer mechanism was later changed to one designed by the
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130:. The final version (M1918A2) provided two selectable rates of fully automatic fire only.
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variant of this rifle fire a maximum of three rounds with each pull of the trigger in
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the
Germans began development of the selective-fire function which resulted in the
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machine gun: double-crescent trigger, E=semi-automatic fire, D=full automatic fire
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150:) in 1941. Another German design that used selective fire was the
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367:, Ontario, California: Collector Grade Publications Inc.,
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family. Another method is a weighted trigger, such as the
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The selective-fire function was later seen in the
Russian
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developed in 1942 at the request of the German Air Force (
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Ezell, Virginia; Gander, Terry J (December 1, 2000).
365:Rock in a Hard Place: The Browning Automatic Rifle
348:The World's Assault Rifles and Automatic Carbines
387:Death from Above—The German FG42 Paratroop Rifle
385:Dugelby, Thomas B.; R. Blake Stevens (2007) .
389:. Cobourg, ON: Collector Grade Publications.
346:Daniel D. Musgrave; Thomas B. Nelson (1967).
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439:http://pogoarchives.org/labyrinth/09/02.pdf
286:"Selective fire - Weapons Law Encyclopedia"
73:The presence of selective fire modes on
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411:"ASSAULT RIFLES AND THEIR AMMUNITION"
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321:"Assault Rifles and Their Technology"
65:. The modes are chosen by means of a
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350:. T. B. N. Enterprises. p. 225.
458:Gordon, Duncan (December 1, 2000).
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173:(designed in 1948), and the U.S.
257:to simulate fully automatic fire
165:(designed in 1946), the Belgian
421:from the original on 2017-11-09
296:from the original on 2017-03-16
169:(designed 1947-53) the British
111:M1918 Browning Automatic Rifle
1:
177:(designed in 1957) and its
113:(BAR) developed during the
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460:"Beyond the assault rifle"
53:to be adjusted to fire in
232:(which is widely used by
49:, is the capability of a
253:, an attachment used by
225:A common version of the
266:Selective-fire shotgun
227:Heckler & Koch MP5
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466:on September 24, 2015
327:on September 24, 2015
255:semi-automatic rifles
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444:2015-09-06 at the
363:Ballou, James L.,
290:www.weaponslaw.org
128:Springfield Armory
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27:Firearm adjustment
396:978-0-88935-429-6
16:(Redirected from
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102:, an early
100:Cei-Rigotti
78:centuries.
47:select fire
18:Select-fire
470:8 December
425:2017-06-16
331:8 December
300:2017-03-16
272:References
251:Bump stock
236:teams and
220:burst mode
216:M4 carbine
214:, and the
124:FN Herstal
63:burst mode
200:Steyr AUG
147:Luftwaffe
61:, and/or
486:Category
442:Archived
419:Archived
294:Archived
245:See also
238:military
119:receiver
75:firearms
67:selector
191:chamber
133:During
98:of the
82:History
36:SIG 550
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375:(2000)
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210:, the
185:Design
167:FN FAL
152:StG 44
51:weapon
212:M16A4
175:AR-10
163:AK-47
139:FG 42
91:MG 34
45:, or
472:2014
391:ISBN
369:ISBN
333:2014
234:SWAT
196:SA80
171:EM-2
34:The
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