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Pitch correction is an electronic effects unit or audio software that changes the intonation (highness or lowness in pitch) of an audio signal so that all pitches will be notes from the equally tempered system (i.e., like the pitches on a piano). Pitch correction devices do this without affecting other aspects of its sound.
In order to be legal for purchase by civilians without obtaining a tax stamp for a Short Barreled Rifle (SBR) as defined by the United States National Firearms Act, the PS90 carbine has an extended 407 mm (16.0 in) barrel and is semi-automatic, with a trigger pull of approximately 31–36 newtons (7.0–8.1 lb f).
Short-barreled rifle (SBR) is a legal designation in the United States, referring to a shoulder-fired, rifled firearm, made from a rifle, with a barrel length of less than 16 in (41 cm) or overall length of less than 26 in (66 cm), or a handgun fitted with a buttstock and a barrel of less than 16 inches length.
PS90 or PS-90 may refer to: FN PS90 , a semi-automatic civilian/carbine variant of the Belgian FN P90 personal defense weapon. Aviadvigatel PS-90 , Russian high-bypass commercial turbofan aircraft engine.
Conversions for short recoil pistols, such as the M1911, Glock, and Beretta 92 consist of a new upper assembly and magazine. Conversions for .22 caliber centerfire rifles and carbines such as the AR-15 and Mini-14 consist of a magazine and an insert that replaces the bolt and includes a cartridge conversion insert that goes into the chamber.
16 in barrel and semi-automatic only.--ZH Evers 06:00, 9 December 2007 (UTC) Me neither. The extended barrel and semi-trigger don't qualify this as a divergent firearm. I realize some people wanted to show off some photos of their PS90's, which I'm sure is a nice little plinker, but I will put up a merge proposal later on.
Attaching the barrel to the receiver using a barrel nut and a barrel with a shoulder is an alternative to action threads, which has been used in firearms such as the Sten gun and AR-15. Hand tools Quick barrel change systems is an increasingly popular alternative, as seen in for example SIG Sauer 200 STR , Roessler Titan or Blaser R8 .
A controllable-pitch propeller is one where the pitch is controlled manually by the pilot. Alternatively, a constant-speed propeller is one where the pilot sets the desired engine speed ( RPM ), and the blade pitch is controlled automatically without the pilot's intervention so that the rotational speed remains constant.