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FIRING PIN RETAINING PIN PLUNGER HK416 417 MR SERIES HK 🇩🇪April 4, 2021
Genuine Heckler & Koch firing pin retaining pin plunger.
🇩🇪 Made In Germany
Here’s a link to the correct HK spring for this plunger: https://www.haus.us.com/product/firing-pin-retaining-pin-plunger-index-pin-spring-hk416-417-mr-series/