[TaroBear]

I had my Marui converted with a Guarder metal kit. It doesn't quite perform the same. It kicks different, and there'll be some kinks to work out regarding performance, most notably trigger pull and locking. It's not any "better", unless you're talking about the feel of the gun. Obviously it's much nicer to use. Be aware that as you convert to metal, there'll be other things such as the spring, outer barrel and some of the controls that you'll want to change around as well. It's a slick slope you'll find yourself on, and I've constantly got parts on order from multiple source to try and finish it up. I believe it's worth the trouble, honestly, but some would disagree with me. If you just want it to shoot, then forget about changing anything.

Edit: While 1911s are simple enough to disassemble and clean once you learn the first time how they work, if you're going with a Guarder kit, I seriously suggest you take it to someone with experience and possibly power tools. It seems like Guarder has some fitment issues. When I had my kit installed, Illusion mentioned how poorly some of the bits fit compared to the stock Marui parts.