Browning BPS Synthetic, 12 ga. slide action shotgun.   Serial #31011MM121, mfg. Japan.  Excellent condition.  30” vent rib barrel has clean shiny bore, 95% matt finish with some rub marks on left side.  3” chamber with one Extra Full choke tube.   Receiver and rigger guard have 96% matte finish.  Dark grey synthetic stock and forearm are excellent.  Sling swivel mounts installed.   Slide action works fine.  Excellent water fowl and turkey shotgun.