Springfield ( Stevens) 311, 20 ga. side by side shotgun.  Serial #5100.  Very good condition.   28” barrels have shiny bores, 2 ¾” chambers, choked MOD & FULL.  Barrels have 75% original finish.  Double triggers and extractors.  Receiver has 30% fading case colors.  Brass trigger guard is homemade replacement.  Stock and forearm are aftermarket replacements.  LOP is 15”. Action locks up tightly, lever to right of center.  Sturdy, low cost hunting double gun.  Bunny buster!