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Receiver::firearm    Firearms::lower    Without::trigger    Magazine::upper    Action::require    Title::assault

Disassembled Mauser action showing partially disassembled receiver and bolt

{{ safesubst:#invoke:Unsubst||$N=Refimprove |date=__DATE__ |$B= {{#invoke:Message box|ambox}} }} In firearms terminology, the receiver is the part of a firearm that houses the operating parts. There are many types and styles of firearm receivers. A bolt action or semi-automatic firearm receiver usually contains the bolt carrier group, trigger group, and magazine port.

AR-15 rifles showing their configurations with different upper receivers (stripped-down lower receiver is visible at bottom)

In most handguns, the receiver, or frame, holds the magazine well or rotary magazine as well as the trigger mechanism. It is sometimes called the body of the firearm, while in the context of handguns (revolvers and pistols), it is often called the frame.

The receiver is often made of forged, machined or stamped steel or aluminium; in addition to these traditional materials, modern science and engineering have introduced polymers and sintered metal powders to receiver construction.<ref >{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>


Receiver (firearms) sections
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