Thanks everyone...it's nice to know the hard work is appreciated by those that understand the little details.
They are Quickstrike's arms, so of course Bulkhead would work as well.
No mods were needed, they just popped off and I switched them as easy as GI Joe parts! (I think so, I did this one awhile ago, but I remember it being that easy)
The metal effect was done by using my favorite brand of silver paint, from the Wal Mart car paint isle, Plasti-Cote Truck and SUV spray. It bonds to plastic even better than Krylon Fusion! You just have to be sure to put it on in incredibly thin coats. Once dry, I can't scratch it, and I've tried! Then, once dry, I put a blackwash on it, but didn't wipe it off the surfaces, and finally dry-brushed it with more silver, which highlights the edges making it look like die-cast, and gives the rest a patina-like finish. It really does look like worn metal in person, these pics actually make the figure look alot cleaner, it has a worn effect like my perceptor custom.
Any more questions? Ask away!