ZEV Technologies Spring Loaded Bearing with Loaded Chamber Indicator Red for Glock

The ZEV Technologies Spring Loaded Bearing ensures there is proper tension on the extractor depressor plunger spring so the extractor works properly. Compatible with all 9mm Glock models. ZEV makes everything you need to keep your ZEV or OEM slide operating at peak level. Zev designs, engineers, manufactures and tests every part they make in house.