This kit of Master Grade Tools and how-to information equips you to confidently tackle everything from building your own gun from the ground up to customizing or modifying an existing gun. With better tolerances, materials and expanded capability, every tool is carefully designed to make each job as simple and easy to execute as possible. Housed in a professional tool case and equipped with step-by-step instructions, you will be able to work smarter and create better guns regardless of your experience level. Product Features Armorer's Master Wrench Replacement Hammer Heads Pivot Pin Tool AR15 Master Bench Block Front Sight Adjuster Tool Smart Fit AR15 Lower Vise Block Bore Illuminator/Safety Flag Pivot Lock Torque Wrench Accu-Grip Picks Pin Punch Set Pin Alignment Tool Easy-Grip Handguard Tool Lug-Lok Upper Vise Block Professional Tool Case