Just called Mike's and they don't have them. They said they did have them but weren't pleased with the product - also said the ones they did have had imperfections in the cap and could lead to cracks. They are working on getting a "reliable" one. Said "check back later."
I bought one from Mikes Affordable parts, it came cracked so can't use it..they said they were going to make another run of them but after about a year they sent me my money back... honest people but not able to get the clear cap produced