I wasn't sure at first, but ordered it on spec and I'm incredibly glad I did.
Not only do you get a variety of close combat weapons, including the rare Volkite pistol, but you also get a number of MKIII arms in non-standard poses - a must for the pretty static looking MKIII minis currently available. You also get a whole lot of MKIII forearms if you want to get all choppy-choppy with them!
There's also a very cool two-handed chainsword!
The set really is value for money if you're into MKIII Iron Armour even if it's just for conversion bits, characters or an assault force (the power fists are very nice!).
Do you use MKIII Iron Armour? Have you used this set? Let us know as we're pretty happy with it...