A barrel does not have parts per se. You can have sights (front and rear) on a barrel, but the barrel is usually one piece, sometimes two.
Barrel, stock,
Action, stock, barrel
Lock stock and barrel
Lock, stock, barrel
Lock, stock, barrel
You can get some double barrel parts from GUNPARTS. com
it is a Stevens, parts are interchangeable...
Frame barrel hammer
barrel, stock, action.
Frame, barrel and cylinder
action,stock,barrel
yes this is a very good barrel for the vibe.