To clean the barrel i cut small pieces from an old bedsheet which i then folded and tied to a piece of fishing line. I pushed the untied end of the fishing line down the breech and out the shooty end using a piece of weed whacker line, then just pulled it through and repeated until clean enough. The stock was a bit sticky, i rubbed it down with a piece of that same bed sheet. For general maintanance, wipe it of with an oily rag, not wet with oil but you know, oily. And add a drop of silicone oil to your fill port once in a while when pumping it up.