We are not sure about the authenticity of these jerseys, but there is a website indicating that it has Alexandria Aces jerseys for sale from 2009 (CBL) through 2013 (United League Baseball era):
If anyone can provide authenticity (or lack thereof) then please let us know.
Found two images (front and back) of a Texarkana Gunslingers jersey for sale on eBay. Here is one image:
Both images are now added on the Gunslingers page here: