I had a question if a new mod was carried; and received my answer in a timely fashion considering it was sent in over the weekend. Instock, high grade parts, with the coating I perfered. 8620 carrier, 9310 bolt, in DLC, black. It was supposedly on sale; didn't seem much higher than the good mid-level bcg's available. And this was/is a ToolCraft production part. This is why I've set up a special bookmarks folder on/in the computer. Literally for a few dollars more, top of the top shelf anybody can access. (Haven't used this speific bcg yet, as it's going into a project this summer. Shouls work just like the others do.) They have many manufacturers' bcg's, 3 to 5 colors with all the coating types, including 'in the white', and cover the run of materials used. Part box is generic-plain; but does it's job, and isn't something I want to pay extra for just to eventually toss out. If I want razzle-dazzle and fan-fair, I'll put some of those blinking lights on it.