Mine came out of the box just like IronFist's did. I was able to remove the orange plug, it's not glued in, just a snug fitting piece of plastic, and yes, the parts baggie contains a faux barrel end that takes the place of the orange plug.
I just can't say enough about how PHUCKING cool this kit is. It is SO worth the cash. If you don't have the cash now, sell some stuff, and raise the cash because this is the coolest Mal pistol ever made with the exception of the original prop, and the uber expensive metal Mal replica. I can't envision a world in which the QMx vaporware gun will be anywhere near as cool as this one.
I went out today and tracked down the sandpaper, dremel buffing wheel, and epoxy needed to complete the kit. I already have the bluing stuff I ordered.
BTW - One other impressive thing....the grips are SOLID resin, not hollow. I was slightly worried about that, but was pleasantly surprised when I took my grips off. Also, Siderio added a rectangular block onto the inside of the solid grips that rests inside the hollow backstrap area so that the grips will not move. So, the grips are essentially secured at the bottom by the blocks, the middle by the screws, and the top where they fit into the receiver.