John ; so sorry this took sooooo long to post ,I was at work today on break when I said I would post this and believe it or not ,I am just getting in and able to do it !
Dean ; I never did fit it to my 410 , I bought a 410 Forend and metal " Paid Too Much " and when it arrived only half of the metal parts were there and the opening lever had been soldered and was broke
!!!!! Maybe some day !