HUNTING accessories THE original from ANSCHÜTZ Here you will find our original ANSCHÜTZ accessories specially developed for hunting. You can also find our complete range of accessories in our current sales price list, which you can download here. Hunting | Barreled actions | Accessories Threaded cap narrow - 1/2"-20 UNF item no.: 004538 Threaded cap for barrel thread 1/2" - 20 UNF, outer diameter 16 mm. Technical data Barrel - Thread:1/2" - 20 UNFMaterial:Steel