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
