This is an ORIGINAL breechblock (BOLT) Remington model 12 pump .22. Bolt accommodelates the FLAT firing pin part number (rp7 or rp55 rop). This bolt is STRIPPED and is NOT complete. You will need the folloWinchesterg parts to complete this bolt, firing pin (rp7), firing pin spring,(rp51??a rop / rp9) the firing pin spring guide (rp57?? rp10) extractor (rp15?) extractor plunger (rp55-a rop / rp12) extractor plunger spring (rp55-b rop / rp11)
