OK.....How do ya clean the chamber on yer standard unit plain Jane 5.56? Any chamber brush I can find, has to be inserted from the chamber end of the barrel, unless there's one made just for the Mini. There's no clearance in the receiver end of the unit I can find to make it work. As the chamber on my unit doesn't seem to be chromed....wouldn't it need some attention? If the manual adresses this problem...my old eyes can't find it. Looking for the secret Bill Ruger took to his grave, less he's just laughing at us. I lent it to a buddy...and he took less than great care with it. It's a dirty lil unit. I've put bout 30 patches down it already, and it's still coming out funky. The gunney would be ripping my rear end. Need some advice before I try and do the chinese puzzle of fitting it back together. :smile2: Turn loose the secret for a brother.