Hi Frederick303 they say a picture is worth a thousand words so I stripped the rifle and took some more pics that I hope will answer your questions. The finish is more black oxide than blue with the reciever being more matt than the barrel.
I only aquired the rifle recently I bought it along with a M82 that was produced to the Canadianspec C3A1 which means that it had a 6 round detatchable box mag fitted it also came without a scope but with PH 5E target sights. I have not fired either of them as yet so I can't answer your question on how accurate it is. I would say that aluminum rail was factory fitted a very similar one is fitted to the M82.
"Rifles or the World" gives a good written description othis family of rifles, page 362 of the third edition. I hope this helps in your quest...Attachment 32419Attachment 32420Attachment 32421Attachment 32422Attachment 32423Attachment 32424Attachment 32425Attachment 32426