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Dust cover (firearms) : ウィキペディア英語版 | Dust cover (firearms)
The dust cover seals the ejection port (which allows spent brass to exit the upper receiver after firing) from allowing contaminants such as sand, dirt, or other debris from entering the mechanism. *Pistols - The dust cover is used to refer to the forward part of the frame. This is where a Picatinny Rail accessory system could be found, if present. *Some people choose not to use the term Dust Cover in reference to pistols. Note that the User Manual for a Ruger P345 uses the term 'frame' for reference.〔 *Rifles - The dust cover, for example, of an M16 series rifle. This is also called an Ejection Port Cover.〔http://www.ar15pro.com/content.aspx?ckey=AR15%20Parts%20Diagram%20Upper%20Receiver%20Assembly〕 == References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Dust cover (firearms)」の詳細全文を読む
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