I was shipped the wrong adapter for a moderator, which was really the fault of Donny FL for having them wrapped in tissue paper and put into small plastic bags so no way to insure the right one is grabbed from the bins. When I contacted Airguns of Arizona they prompty mailed out the correct adapter USPS 2-day along with a UPS return shipping label. Two days after I phoned them I had the new adapter and could use the moderator. If I was dealing with Pyramid it would have taken 3 days for them to get back to me and another week to get the correct part.