I've swapped the standard bling-bling outer barrel and barrel bushing for plain black parts, but they're original TM reaplacements, think I took the grip weights out as well.  Absolutely nothing else has been buggered with, the pixie dust is still inside.  Seen maybe 2 or 3 skirmishes, less than 10 mags worth of shooting total at a guess; very slightly scuffed in a few places externally, but by TM standards of longevity I'd say it's barely broken in.  DOES NOT come with a magazine since Parcel Force loves destroying packages if you try and ship those, hence the low price.