I traded a handgun for my XPS and sent it in. Got $514 back. Similar build of 2015. Knowing the information at hand, I probably wouldn't have accepted the trade back then. That's how I looked at it.
This is kinda where I'm at- I have a similar situation... what did you replace yours with? That's probably what makes me hesitate- I'd want a reflex site with a different reticle than a simple dot. I've got a Bushnell TRS-25, and just not as quick with plain red dot.
ΜΟΛΩΝ ΛΑΒΕ, we are the III%, CIP2, and some other catchphrase meant to aggravate progreSSives who are hell bent on taking rights away...