I purchased an Aya Matedore from Milt Kline years ago. It was a pretty gun, but made of very soft steel. It had a single slective trigger and ejectors. After firing three rounds it began to double. I sent it to Micro Gunsight Co. to be fixed. The same thing occured three times. I fnally gave up and sent it back to Milt Kline and he sent me a new one with a case hardened frame. One could see daylight between the back of the barrels and the frame. I gat a refund and bought a Chalrles Daly model 500 made by Miriku and never had any trouble. I used it for water fowl and upland game birds for years. My advise is not to purchase any Aya Matadore guns fron the 1960's.