mq_meta_immo

$meta_query = array(
	'relation' => 'AND',
	array(
		'key'     => 'mq',
		'value'   => 'args['mq_from']',
		'compare' => '>=',
		'type'    => 'NUMERIC',
	),
	array(
		'key'     => 'mq',
		'value'   => 'args['mq_to']',
		'compare' => '<=',
		'type'    => 'NUMERIC',
	),
);