Filter by URL arguments

I’m trying to build a page that using Query Wrangler such that the query results show on the page and are filtered by URL arguments. For example:

Let’s say I have a page at https://www.mysite.com/my_page

Then, if a user visits https://www.mysite.com/my_page/filter_arg (or similar) Query Wrangler will return all posts whose Post Type = filter_arg

Is this possible? I’m not able to figure out how to do this.