Designed to work with 5.56 and 7.62 AR platform rifles components. Works with encapsulated and pin style barrel nuts including the GI style nut. Drive end for all MI free float barrel nuts – Including CRM,SLH,CRT,CRLW,ULW,G3M,G4M,SP Series

• Designed to work with 556 and 762 AR Platform Rifles Components
• 3/4 Inch Wrench for A2 Muzzle Devices
• Castle Nut Driver with 3 Notch Engagement
• Combat Bottle Opener
• Small Hammer Head