DyTac have announced they are producing a UXR4 rail system with KeyMod:
Dear Sir, As you know, DyTac is the most trend update brand in the Airsoft manufactory. We are gladly to introduce we are going to release the UXR4 rail systems with KeyMod.
For any further update, please visit our Facebook page.
Please feel free to contact us for any further assistance.
Your reply will be highly appreciated.
Best Regards, Brian Chan (DyTac)