Brand: NcSTAR Includes: Cleaning Mat, Armorer's Wrench, Handgaurd Removal Tool, Front Sight Adjustment Tool, Hammers, and Punch Set Warranty: Lifetime The perfect gunsmithing starter kit for AR-15s! This kit includes everthing thing you will need to start your own custom build or make updates to your AR-15. Cleaning Mat 36" X 29" with hook and loop straps to secure kit - Black AR15/M4 Armorer's wrench with various types of barrel nut, castle nut, muzzle brake, buffer tube wrenches and more! AR15/M4 Handguard removal tool AR15/M4 A1 & A2 Front Sight Adjustment Tool Brass & Nylon Hammer with wooden handle 5/64" steel punch - Gas Tube roll pin tool 3/32" steel punch - Bolt Catch roll pin tool 1/8" steel punch - Trigger Guard roll pin tool 1/4" brass punch 5/16" brass punch 7/32" plastic punch 5/16" plastic punch Nylon Cleaning Brush - Broad and Narrow bristles brush heads