<https://3wtactical.com/parts/barrels-2/40-sw-barrels/glock-40-sw-replacement-barrels/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://3wtactical.com/parts/barrels-2/40-sw-barrels/glock-40-sw-replacement-barrels/>