Received my BX1870 about a week ago and am learning as much as I can about it. I have a question on the FEL attachments for it. I am looking for a used LA203 which are hard to find. Are there any other model FELs such as older models that would work on the BX1870? I also read that the LA243 will go right on (My brother in law has that on his BX 2370) but my dealer says thats not true. I could borrow his if it will fit with the right side brackets for mine. Any information on his would be helpful.