I know this comes up from time to time but I don't recall if there is a definitive answer. I bought a no-drill Redfield 102 and was excited to see it come with the magazine plate screw which I gather is an oddball item. Unfortunately, the screw may be the proper thread but is no longer than the plate screw it is supposed to replace. I eyeball it at about 3/8" when the necessary length is apparently 1/2" or even 5/8". I do have the option to return it but before doing so, I wanted to ask if there is a replacement source available.