Several years ago, I did some internet research on Swift scopes. It was not a brand, cursed or highly recommended by anyone. Basically, Swift had a decent reputation for making a midrange priced scope, not trying to complete in the low priced or high priced scope market. So I bought a Swift Premier 6-18x40 AO scope from a company that had this model for $50 or so less than anyone else selling it on the internet. Mounted it on a centerfire rifle that I would use just for paper shooting. Its performed well for me. Glass is not top notch, but more than adequate for my needs, having decent clarity and its elevation/windage adjustments have worked well. Because of this, within a year I will buy another 2 of the same Swift model scope when it was discontinued and available for an even lower price. All are on centerfire rifles used just for target shooting and I've no complaint about any of them. Gent I shoot with on a very regular basis has a few Swift scopes, as well as a fair number of Leupolds, Sightrons, Weavers and etc. Asked him his opinion of Swift. He had nothing negative to say about Swift, but neither did he highly recommend the brand. In short, if he needed a decent scope and didn't want to spend the money needed, lets say for a Leupold, he wouldn't mind buying a Swift. As someone else wrote......buy a Premier model Swift.
Swift was a U.S. optics company founded back in late 1920s and it is a brand fairly well known for its microscopes used in many high school classrooms. Not sure when Swift got into making rifle scopes, but can remember it having scopes back in the 1960s. As another replier wrote, Swift sold off its rifle scope division several years ago. If you read the info on the current Swift Rifle scope website, it is easy to interpret its info about the glass used in them being U.S.A made Shott7bak glass, to mean, entire scope is made in U.S. As already mentioned, Swift scopes are made in South Korea, only its glass is made in U.S. By the way, being shott7bak glass, suggests it is the same glass used/made by Zeiss, but this is just speculation by me.