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Sear: A sharp bar, resting in a notch (or in British: "bent") in a hammer (or in British: "tumbler"), holding the hammer back under the tension of the mainspring. When the trigger is pulled, the sear moves out of its notch, releasing the hammer and firing the gun. [1] The term "sear" is sometimes incorrectly used to describe a complete trigger ...
A binary trigger is a trigger for a semiautomatic firearm that drops the hammer both when the trigger is pulled, and also when it is released. Examples include the AR-15 series of rifles, produced by Franklin Armory, Fostech Outdoors, and Liberty Gun Works. The AR-15 trigger as produced by Liberty Gun Works only functions in pull and release ...
An auto sear ("automatic sear") is a part of an automatic firearm that holds the hammer in the cocked position while the bolt of the weapon is cycling and releases the hammer/striker. It is basically an internal trigger actuated by the bolt/bolt carrier when placed in-battery. An auto sear is required in nearly every automatic rifle.
The AR-15 uses an L-type flip, aperture rear sight and it is adjustable with two settings, 0 to 300 meters and 300 to 400 meters. [16] The front sight is a post adjustable for elevation. The rear sight can be adjusted for windage. The sights can be adjusted with a bullet tip or pointed tool. The AR-15 can also mount a scope on the carrying handle.
The Armalite AR-15 is the parent of a variety of Colt AR-15 and M16 rifle variants. History After World War II, the United States military started looking for a single automatic rifle to replace the M1 Garand , M1/M2 Carbines , M1918 Browning Automatic Rifle , M3 "Grease Gun" and Thompson submachine gun .
In 2014, he claims to have invented a forced reset trigger specifically for the AR-15 platform, subsequently acquiring a patent for it in 2015. According to Graves, he later licensed his patented technology to two well-known manufacturers of forced reset triggers.
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Trigger pack 601 AR-15 Designated M16 on 3 Dec 1963 A1 profile (1:14 twist) Green or brown full-length triangular Green or brown fixed A1 A1 A1 A1 A1 A1 Duckbill flash suppressor No No Safe/Semi/Auto 602 AR-15 Designated M16 3 Dec 1963 - there was no XM16 A1 profile (1:12 twist) Full-length triangular Fixed A1 A1 A1 A1 A1 A1