i have a m37 and i love it!! bought it usedwith a 24" smooth and a deerslayer smooth barrel. im gettin 1"groups with federal truball rifled slugs at 50yrds. then i found a brand new barrel w/turkeychoke and fiberoptic sitesat a local gun shop for $80.00 so i bought it. if i had the chance it get a rifled barrel for it i probably would!!but all barrels dont fit! ithaca made some changes thru out the yearsso take your gun in and make sure it fits before u buy it!!!go in there web site and checkout the prices on a new ithaca!!!