NcSTAR AR15/M4 Gunsmithing Tool Kit, Includes Tool Roll/ Cleaning Mat, AR15 Armorers Wrench, Handguard Removal Tool, AR15/M4 A1 & A2 Front Sight Adjustment Tool, Brass & Nylon Hammer, (3) Steel Punches, (2) Brass Punch, (2) Plastic Punches, and Nylon Cleaning Brush TGSARKB The AR15/M4 Gunsmithing Tool Kit includes many of the AR15/M4 specific tools that you may need to work on your rifle/carbine. NCSTAR included many of the AR15/M4 tools that you may need to assemble your AR from a stripped lower receiver and for attaching all kinds of after market accessories to custom configure your rifle/carbine to you specific needs. The tools are organized on a large Black Cleaning Mat that can be rolled up with the tools secured into a compact package.