AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool Black Small. This wrench by AIM Sports Inc is used to install/disassemble nuts compensators & tubes and removal/installation of AR-15 barrels. The AIM Sports Inc AR15/M4 Armorer Wrench is made of 4140 powder coated steel and includes a receiver tube stock nut wrench with A1/A2 flash hider slot/receiver extensions. Whether you need to assemble or disassemble the AIM Sports AR15/M4 Armorer Multi-tool means business Specifications for AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool: Manufacturer: AIM Sports Inc Fabric/Material: 4140 Steel Color: Black Finish: Powder Coated Gun Model: M4 AR-15 Length: 12.5 in Additional Features: Combo Condition: New Features of AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool Heavy duty multi tool CAR stock w/ 3 point castle nut / locking ring Install / disassemble nuts compensators & tubes Removal / installation of AR-15 barrels Receiver tube stock nut wrench A1 / A2 flash hider slot / receiver extensions Made of 4140 powder coated steel Package Contents: AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool What firearm models does the manufacturer say AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool is compatible with? The manufacturer suggests that AIM Sports Inc AR-15/M4/M16 Armorer's Combo Wrench Tool is compatible with AR-15 M4AIM Sports Inc PJTW3: AR-15/M4/M16 Armorer's Combo Wrench Tool Black Small