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Mycobacterium avium complex (MAC), also called Mycobacterium avium-intracellulare complex, is a microbial complex of three Mycobacterium species (i.e. M. avium, M. intracellulare, and M. chimaera). [6] It causes Mycobacterium avium-intracellulare infection. [7] [8] Some sources also include Mycobacterium avium subspecies paratuberculosis (MAP). [9]
A US Marine practices shotgun door-breaching techniques. A breaching round or slug-shot is a shotgun shell specially made for door breaching.It is typically fired at a range of 6 inches (15 cm) or less, aimed at the hinges or the area between the doorknob and lock and doorjamb, and is designed to destroy the object it hits and then disperse into a relatively harmless powder.
The shotgun can be used as a primary weapon by the breacher or be dedicated solely for breaching. If the latter, the shotgun can be holstered or slung in a harness when not in use. [5] There are also breaching shotgun systems which can be mounted to a rifle to avoid the issue of managing two weapons.
These bacteria cause Mycobacterium avium-intracellulare infections or Mycobacterium avium complex infections in humans. [2] These bacteria are common and are found in fresh and salt water, in household dust and in soil. [3] MAC bacteria usually cause infection in those who are immunocompromised or those with severe lung disease.
The Masterkey is a door breaching shotgun system manufactured by Knight's Armament Company. The Masterkey project was initiated during the 1980s to provide assault rifles with a potent built-in door breaching tool. Individual soldiers were often forced to carry a breaching shotgun in addition to their standard-issue rifle, but the Masterkey ...
Hatsan Escort Magnum, security and law enforcement purpose 12 gauge semi-automatic shotgun. The primary characteristic of a riot shotgun is a "short" barrel (generally 14 to 20 inches (360 to 510 mm) long; 18 in (460 mm) is the shortest length available to civilians in the U.S. that is not subject to additional federal ATF regulation) which makes the shotgun more compact and easier to handle ...
In modern dropping block, break-action (e.g. double-barrel shotguns) and revolver firearms, the extractor is a protrusible piece with flanges on the barrel/cylinder side, which pushes rearwards on the casing's rim and slides it out of the chambers. Some such extractors can push hard and far enough that they completely clear the cases out of the ...
Failure to feed (FTF) is when a firearm fails to feed the next round into the firing chamber. Failure to feed is common when the shooter does not hold the firearm firmly (known as limp wristing), when the slide is not fully cycled by the preceding round, or due to problems with the magazine. It can also be caused by worn recoil springs, buffer ...