REAL AVID BUILDER'S ESSENTIAL KIT BUILD, UPGRADE AND MAINTAIN YOUR AR15 WITH PRO-GRADE TOOLS ENGINEERED FOR BUILDERS. The Builder's Essentials Next-Gen Kit delivers professional-grade tools engineered for precision, speed and repeatable results - perfect for first-time builds or routine upgrades. Take it further with Master GradeA(R) tools crafted with superior tolerances and materials to simplify even the most complex modifications. This comprehensive kit equips you with everything necessary to do so confidently. Includes: Armorer's Master Wrench Smart-Fit AR15 Vise Block Lug-Lok Upper Vise Block- AR15 Ma Mfg: Real Avid