Male QD x 1/8” MNPT with built in check valves

Does anyone know where I can buy a BSSP gauge other than china, and the UK
Both are terrible in delivery dates and time. I bought a Plenum Kit with a retarded thread in 1/8 BSSP we are in the USA you would thing people would stick to USA threads like 1/8 NPT that I can buy anywhere. I have a Planum I can't use because I'm still waiting for the part from the UK