I have a Daly-marked 500 in 12ga and a Miroku-marked 500 in 20ga, and there are differences between the two guns, especially re the frame shape where it meets the buttstock. I do not own but have seen a number of variations in frame color and shape, forearm shape, engraving, etc. among 500s. We know that Miroku made an excellent single trigger for the BSS, both selective and non-selective, so if yours is the BSS-type trigger it will be good. There are some common and consistent configurations in the 500, but outliers keep popping up. Looks like you found one. If you like a 12 with 26" barrels, that looks like a nice one for $700.
