Sorry i ment we need to no what type of on/off is it. i.e. Planet eclipse as they take very different screw to an ION duckbill.badd701 said:ots to attch it to my gat the ones i have are to long its a autococker if that makes any dif if there dif screws for dif guns i dont knoe its to attach the drop down attached to my on/off to my gun