For sale is a 400 Corbon barrel for a Colt Officer and four 20 round boxes of 400 Corbon hollowpoint ammo. The barrel and ammo came with a used Officer I purchased so I don't know if the barrel has ever been shot but it doesn't look like it. I'm asking $250.00 for everything. The ammo alone is about $130.00 for the four boxes. Thanks for looking.