NoDakSpud 10/22 Sights

In a previous post regarding Liberty Training Rifles for Appleseed, I mentioned Tech-SIGHTS.  On an Appleseed forum post, a dealer mentions that they're made in Taiwan.  Then I found on Arfcom that NoDak Spud makes a similar product with a rail, which is made in the U.S., but currently only for their 10/22 receiver.