Change This If You're Using a .45-10mm Conversion Barrel
This guide details the process of installing a 10mm conversion barrel into a Glock 21 frame, emphasizing the critical step of replacing the factory extractor with a 10mm-specific one for reliability. It also covers recommended upgrades like a tungsten guide rod and provides insights into Glock's internal mechanisms, including the safety plunger and extractor depressor plunger assembly.













