So I cleaned it up and greased it up with froglube and decided to let it sit in the safe and soak for a few weeks as the weather wasn't good enough to go out. Finally went out last weekend, wiped it down and ran some #7 winchester ammo through it. I can say that these need to be shot to get the action smooth! First couple of shells through it I had to put some effort into cycling, but after a full tube things started to get much smoother and much better. It still feels "gritty", but I think I'd have to send it to a smith to get it buttery smooth. Slam-firing all 6 shells was incredibly fun, and the grin on my face never left! I was hesitant to jump on a new Chinese product, but I am very satisfied and already looking to get aftermarket mag spring and plunger which lets you hold 6 in the tube, and I'm patiently waiting on Mr_Trout's report before getting a heatshield for mine. I'm supposed to be cleaning a new K31 today, so I may pull out teh shotfun, take some pics and unscrew the choke, as I'm really hoping to identify which models will fit. I want to run slugs through this bad boy.