Type 4 SN 129147 29.5 inch barrel with 18.6 bore, 3 inch chambers, flat Tramline rib, ventilated mid ribs, Briley thin wall screw-in chokes (SK, SK, IC, LM, IM, FULL). Barrel shows no blue wear, has no scratches or rust, and rib is in perfect shape. Metal mid bead and ivory front. Mid ribs are solid with no signs of loosening. Barrel has had no modifications other than screw-in chokes by Briley. Email oldnnp@cox.net with any questions and for pictures . Asking 2650.00 plus shipping.