Hi Steve and welcome. Yes, you just need the Hellcat RMSc Adapter Plate : opticsplanet.com/c-h-precision-weapons-springfield-hellcat-w-rmsc-footprint-adapter-plate.html - Cheers and stay safe!

Steve, no sir, the Hellcat Pro slide is milled with the Springfield Micro footprint (Shield RMSc Footprint), designed to accept the smallest, most popular micro red dots on the market. The Dragonfly has the Springfield Standard Footprint (Vortex Venom / Burris Fastfire) footprint.
You want something with the RMSc footprint.
Stay safe & have a great day!