Yes, Sportarget was a term used by Parker Hale for this particular sight. I've attached a few images of my two Airsporters along with another I once owned, that is fitted with a PH17 aperture sight. I regret selling that one! These rifles are an absolute joy to shoot, especially as my eyesight is starting to struggle with standard open sights.
https://photos.app.goo.gl/Vh3g8BjxohpnzVLQ6
Kind regards,
John