Starting to eye a 22/45 lite I decided to look myself. Surprised at few makers offering a holster for this one. Desantis, who I'm liking more all the time shows one trail model. Bianchi has a neat molded nylon for the 5.5" MkII, but nothing shown for the lite. Galco was a blank as well. Although the Yaqui belt slide would work. Either one for a 1911 or a Glock. I have both of those I can try with an older 22/45 if that one interest you.

Tacsol offers a Kydex or plastic in low & high ride. Found those when doing a Google & an Amazon search. Slim pickins.