selling my m2 adapter and checking interest here before i list it on ebay. it was bought jan 2006 directly from redrock. i havent used it all that much id say 30- 40 hours. it also comes with the rail mount as well. the ground glass did unscrew once and the ground glass got a few scratches, but once spinning its not noticeable and doesnt effect the quality of image. the bars arent from redrock, they are ones i had made out of solid steel. they are heavier but stronger. there is also a case i made, and some lenses can be thrown in as well. so offers are welcome if youre intrested.