The factory Glock part is very hard to identify as a 10MM part unless you can measure it against a spec sheet. The improved LWD part has an easy to verify "6" stamped into it so you always know which extractor is for your 10MM
Lone Wolf extractors are investment cast from A1 tool steel.
Must use new style spring loaded bearing with this extractor. GLO-3442. Part number 3 on the Glock Schematic.