<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">blowback action</topic></authority><related type="broader"><topic>self-loading</topic></related><variant type="other"><topic>action, blowback</topic></variant><variant type="other"><topic>blowback operation</topic></variant><variant type="other"><topic>blowback system</topic></variant><variant type="other"><topic>operation, blowback</topic></variant><variant type="other"><topic>system, blowback</topic></variant> <note xml:lang="en"><![CDATA[ Use to describe automatic and semiautomatic firearms in which the pressure of the propellant gas is used to force the bolt to the rear, independently of the barrel, which does not move relative to the receiver. ]]></note></mads>