I have found a used handgun I would like to purchase at Cablea's in Washington. The handgun is Massachusetts compliant. They are refusing to sell it to me because of our trigger pull standards. If the gun was new it would be a different story. I have found that on the Enforcement Notice: Attorney General's Handgun Safety Regulations that "Before a handgun-purveyor can transfer new (and certain used) handguns in Massachusetts, the consumer protection regulations must be satisfied. Does anyone know what handguns are the "(and certain used) ones refers to?