The Apex Failure Resistant Extractor for Glock is designed to provide a more robust extractor claw and improved geometry to produce a more durable extractor delivering consistent extraction. The extractor is machined from a billet of aerospace grade stainless steel. Due to variations in manufacturing, this extractor is not recommended for use with aftermarket slides and/or barrels. Expected Results Improved reliability based on improved geometry of the extractor hook and high quality materials Applicable To What Gun(s) Works with the Gen 3 9mm Glock pistols (Glock models 17, 18, 19, 34) AND Gen 5 9mm Glock pistols (Glock models 17, 19). Designed and tested with Glock Mfg: Apex Tactical Specialties Inc