Any particular reason why you want open sights? Are you planning on shooting driven Euro style? If so, I’d really look at a red dot sight. I think you’ll be onto the realms of trying to get something adapted or smith’d If you really want open sights that aren’t designed to fit. I am not saying it’s impossible, just likely a ‘make it work’ solution if DIY or expensive if done professionally. Either way, good luck with it and let us all know how you get on.