I am new to slug hunting (basically all I have ever used is a single shot smoothbore), but I recently purchased a Mossberg 500 shotgun. I have been looking for a fully rifled ported 12ga slug barrel.

I found a 12ga rifled slug barrel with a cantilever scope mounton Auction Arms, and the price is $100.00 which seems low to me. The seller states the barrel has only been shot 5 times and the bluing looks great. I don't really know if this is a good deal or not?...

Being new to this - would you buy a used rifled slug barrel? It looks like a great deal, but as I said I am not familiar with slug guns and I am required by law to use one where I live.

Any input would be great.