B5 Systems M4 Multi-Tasker Tool – AR-15 Armorer's Wrench & Field Tool

The B5 Systems M4 Multi-Tasker Tool is a compact armorer's wrench and field maintenance tool designed specifically for AR-15/M4 platform rifles.

• Primary Function: AR-15/M4 armorer's wrench
• Material: Heat-treated steel
• Finish: Black oxide
• Compatible With: Mil-spec AR-15 castle nuts, barrel nuts, front sight posts
• Features: Castle nut wrench, barrel nut wrench, front sight tool
• Weight: Approximately 4 oz