A different kind of model dump. Namely, they're all turrets for an idea of mine where the ship itself never materialized. They were not conciously designed to be particularly high or low poly (save in the end stages, where I chopped the barrel polycounts as much as I felt possible), and I can't give a particular polycount, because that's not a feature of the program I use. Cinema4D was made for movie work, where polycount is no object.
Aside from the addition of firepoints, and possibly messing with the normals, they ought to be fully complete and ready to be slapped onto a model and converted. Of course, you can still screw around with the modelling too (resmoothing comes to mind) if you want.
http://www.geocities.com/ngtm1r/Turretdump.zip
Misc. BS About Designs
Most of these were inspired by too much time at places like NavWeps.com or combinedfleet.com, and looking at far too many pictures of WWII warship turrets. The center and far left (your left) take after British 4.7" twin turret design; the two flanking the center owe much (nearly all for the right-side one) to the design of the
KMS Bismarck's twin 105mm antiaircraft mounts. The missile launcher (I'm not sure multipart missile launchers even work...) owes pretty much nothing to any particular design.