<p>Complete your custom slide with the Zaffiri Precision&reg; GLOCK&reg; 43/43X/48 Upper Slide Parts Kit. It includes firing pin and spring, spring cups, safety plunger and spring, complete extractor with LCI, extractor depressor plunger assembly, slide recoil cover plate, and recoil spring assembly (guide rod). All parts are made to the highest tolerance to the original specification to ensure long-lasting, reliable performance. Specifically made to fit with GLOCK 43, 43X, and 48 models. <strong>Note:</strong> This kit is intended to be installed by a competent gunsmith.&nbsp;</p> <p><strong>Kit includes:</strong></p> <ul> <li>Firing pin and spring</li> <li>Spring cups</li> <li>Safety plunger and spring</li> <li>Complete extractor with LCI</li> <li>Extractor depressor plunger assembly</li> <li>Slide recoil cover plate</li> <li>Recoil spring assembly (guide rod)</li> </ul>