Yeah, im unarmed, and basicly told "moment a fight starts gtfo". Scarecrow duty really. Wear the uniform and badge, walk around, ward off weirdos, ut be friendly and smile so dont scare off the normies.
And the codpiece... well. Like any quality peice of fashion, depends on how fast you want it and how much you got to spend.
Cheap and now? Its more likely just okd russian casing with a hand grenade and dirt from chernobyl inside. A proper thermonuclear cod piece could take weeks on just the artistic styling alone, and best expect to have to do a couple sittings so its a proper fit.
I suppose if your in a rush could get a used fission one, but be ready for some pointed comments about last years fashion, and "making an effort".