Dusan, yes there is usually a section for accoutrements in each compilation of returns. Come to think of it, the "half-stock Harper's Ferry rifle" mentioned must be the US Model 1803 flintlock rifle, as you probably know.

The accountrements columns of non-dragoons are probably visible among all the links I put up before, so you can see what items are reported as an example. If you can't see them well enough I can look for a better photo from that days' adventure and post it.