Winchester Model 12 Parts 12 Gauge   Back   Click the schematic to the left to open an exploded view of this firearm in a new window. For pricing and availability please call or email with: Firearm Name Gauge or Caliber Complete Serial Number Complete Part Name(s) Complete Part Number(s) Email request to: CustomerService@MidwestGunWorks.com PART NO. DESCRIPTION 1201A0960 BREECH BOLT 12 GA, WIN MODEL -12 1205A0960 BOLT 12GA DUCK 1206A0960 BOLT 12GA SQUARE FACE 1206A5780 MAGAZINE FOLLOWER 12 GA 1206A9340 TRIGGER, WIN 12 1206A6040 MAGAZINE PLUG 12 GA 1200A7100 RECEIVER SHANK 0500A1440 STOCK BOLT 1206A5570 MAGAZINE BAND 12GA 1206A0730 CHAMBER RING 12GA 1206A4500 TRIGGER GUARD 12GA 5912 BARREL CHAMBER RING 16GA 1201A0491 ADJ SLEEVE 12GA "A" 1201A0492 ADJ SLEEVE 12GA "B" 1204A0492 ADJ SLEEVE 12GA#2 1205A0492 ADJ SLEEVE 12GA#3 1207A0492 ADJ. SLEEVE 12GA#4 1206A0490 ADJ SLEEVE 12GA STD. 1299A7145 RECEIVER RIB LONG 1298A7145 RECEIVER RIB SHORT 1200A4700 HAMMER STD 1206A3150 FIRING PIN 12GA 3112 ACTION SLIDE SPRING 12 QA 1200A2570 EJECTOR SPRING ONLY 1206A1660 CARRIER PIVOT 12GA 1200A0510 ADJ SLEEVE SCREW 4130A0850 CHAMBER RING'RETAINER 1200A1190 BREECH BOLT RETAINER LEVER PIN 1200A1180 BREECH BOLT RETAINER LEVER 1206A2800 EXTRACTOR RH 12, WIN 12 1200A4570 GUARD SCREW 1200A3330 FIRING PIN RETAINING SCREW 1200A3340 FIRING PIN RETAINER SPRING 1206A5580 MAGAZINE BAND BUSHING 1200A1720 CARRIER SPRING 1200A4820 HAMMER SPRING GUIDE ROD PIN 1200A4810 HAMMER SPRING GUIDE ROD 1200A9470 TRIGGER PIN 1200A9550 TRIGGER SPRING, WIN 12 1200A6060 MAGAZINE PLUG SCREW 1206A6070 MAGAZINE PLUG STOP 1200A4780 HAMMER SPRING 1206A3310 FIRING PIN RETRACTOR 1206A2810 EXTRACTOR LEFT HAND 12 GA 1200A4750 HAMMER PIN 1207A1890 CARTRIDGE STOP DUCK 1206A1560 CARRIER 12GA TRAP 2312 ACTION SLIDE HANDLE RETAINING SPRING 9912 CARRIER PLUNGER SPRING 10012 CARRIER PLUNGER SCREW 10912B CARTRIDGE GUIDE 1206A0090 ACTION SLIDE 12GA, WIN MODEL 12 1206A5410 MAGAZINE TUBE 12, WIN MODEL 12