I am doing some leg work for a buddy of mine who just purchased a BM59. The rifle has M1A stock, bbl, bolt ect ect. M1 receiver of course. BM59 trigger group. Comparing with my Springfield M1A I have came to the conclusion that if I replace and modify the guide rod and housing (to accept M1A mags) and replace the trigger group and modify the receiver some to take the M1A trigger group it should be a knock off M1A. Does anyone have any experience, suggestions, or thoughts? Or know of a different forum to point me toward. He is on a limited buget with only 225 bucks in this rifle.... not bad if you ask me and the modification is worth a shot. Thanks.