A while back I bought a used rem 870 20 ga for my wife. She hated it so I asked a dealer about having the barrel cut down to 18 inches to use it as a " truck gun / fun gun / range gun ". I was told that a dealer cannot legally cut a shotgun barrel shorter than 18.5. The law clearly states a shotgun barrel can be 18 inches without being considered SBS. Is there an an actual law about how short a gunsmith can shorten a shotgun barrel? If I was going to hack it down myself I would definitely want to err on the side of caution but if I pay a professional to do it I would expect it to be done correctly at what law allows you to have. (the gun I bought has a standard stock but even with a pistol grip there is no way an 870 pump with an 18" barrel falls under the 26" overall length requirement) I'm thinking the dealer was just blowing smoke erring on the side of caution hisself but I'm not sure. The gun currently has a 24" barrel (I think) with a replaceable choke that came IC I ibelieve. Would it really be a sin to hack that off? I don't think the gun could be considered collectable so I might make as well make it fun or "tacti-cool". Does some one make an 18" barrel with a bead sight or maybe rifle sights but smooth bore for the 870 in 20 ga? Thnx