Lee Precision Universal Decapping (Depriming) Die
This is the best .223/5.56 Depriming Die on the market. The reason being is the decapping assembly is a single piece instead of multiple pieces like all the others on the market. When you end up damaging you decapping assembly on a berdan primed case or something else...a new decap assembly costs less than half the price of all the others out there. This die will also deprime any caliber out there and laughs at military crimped primers like they weren't even crimped in the first place.
"Lee Decapping Die, no cleaning or lubing of cases necessary. Even removes crimped primers. Fits cases up to .560" in diameter and up to 3.125" long."--from Lee Precision's own website