Yes, the Singer shop contracted with CNC during the bike boom during the early 70s to make very nice stock bikes that would be sold for less than a full-custom Singer, to satisfy demand. They are generally black with red trim and although they don't have the special features Singers are known for (bilaminate lugs, braze-on centerpulls, custom racks and mounts, etc...), they are high-end bikes made by a high-end production shop.
These are great bikes. I would just caution against paying what you would for a custom Singer for one of these.