They also make an equally extensive range of gun accessories, shells, shell wrappings, fuzing, travel trails, etc. There's enough stuff to make detailed and convincing gun vignettes.
All castings are very clean with minimal casting plugs.
Boy, I HATE them. There is some slight warping on the long pieces like trails and recuperator rails, but straightening them is easy. Barrels are cast in several pieces, so no warping there. The amazing thing about the small castings is how much detail they have. Most important, each piece is cast pefectly.