AJAX call, hook_menu the requested url does not exist
You've confused access arguments with access callback. It should be:

$items['aug_store_front/get-products/ajax'] = array(
  'title' =&gt; t('Get products from specific product group'),
  'page callback' =&gt; 'aug_store_get_products',
  'access arguments' =&gt; array('access content'),
);