EMc Gun Parts and Services. Thompson Center Encore Custom Shop. 45 Colt. 410 10 Pistol Barrel, with Choke & Key. This is as good as it gets; New-in-Box Custom Shop pistol barrel. Plinking to Deer & Hog Hunting, to potting an annoying squirrel, or a garden rabbit, this will do for many situations. Study pictures; Verify this matches part you need. What you see is what you get. Multiple items; combined when possible. Correspondence received; Saturday, might be answered.