Looking for 18” barrel - Mossberg 90140 500 Barrel 12 Gauge 20" Front Bead Sight Blued

Was looking for 18” barrel for (model 500AT, 12 gauge, 2-3/4” chambered) and designed by Moosberg. Well my purchase cost of this barrel at 20” length far exceeds chop-off barrels which eBay offers at up-to 20% over Optics Planet’s price. If your interested compare. Subject barrel is vented, front bead site, with three supplied chokes. This abarrel can be used for short range hunting. Do you think an 1-1/2” longer barrel length will make than much difference for home security? I very good choice.