Mossberg Model 500A, 12 ga. slide action shotgun.  Serial #K581134.  Excellent condition.  28” vent rib barrel has shiny bore, one MOD choke tube, 95% blue with couple tiny marks on rib. 3” magnum chamber.   Alloy receiver and trigger guard have 96% blue with one mark on receiver top.  Hardwood stock and forearm are excellent with factory recoil pad.  Slide action works fine.  Good all-rounder.