Actually, customers are giving BK Grips more business than is comfortable sometimes, and I think (but can't prove) that a majority come from this site.
Since the China Virus lockdowns began in March, demand has significantly surpassed prior years. (Sales in 2020 went past 2019 total sales during the first week of August.) The "plastic" adapters are cast in individual molds and need to have sprues and flash trimmed off before they're ready for sale. That's Xacto knife work, and with increasingly arthritic hands becomes hard to do for more than a couple of batches a day. There's a batch of black K adapters curing at the moment, and they'll go into inventory later tonight. There should be another batch of something made tomorrow, but probably not two.
Thanks to all those here who have supported, and appreciated, the plastic alternative over the years.