That is the oddest nosepiece I've ever seen, it has an oversize flange on the end which is not required. The link below is what you should have.
https://www.amazon.com/Baader-Nosepiece-Adapter-T2-14-2458105/dp/B002P4LCAG
The t-ring should have a 1.25" nose-piece.
https://www.amazon.com/Baader-Nosepiece-Adapter-T2-14-2458105/dp/B002P4LCAG