cyclone,
I consolidated all my weapon platforms. It makes life easier to have duplicates of similar weapons. I don't have a bunch of different magazines for different weapons or funky calibers. My primaryhandgun weapons are .45 caliber 1911s and the G19 for 9mm. That's it. For ARs I have several similar, but slightly different, ones. Some for home defense (SBRs), others for longer range precision and others for kind of general purposes. But they share common parts and manual of arms. If one goes down, I don't worry because I can grab another from the safe. I like the redundancy.
This probably doesn't help you though.
birdbarian, I've got a very slightly used 552 I just put up for sale in the EE in the AR parts section, since I was gonna sell it with a LaRue mount. I think the mount is sold. If you want the EOThing, you get first dibs for $300.
Mark