Pro-Shot AR15/M4 Bolt Carrier Group Tool / Pull Through Handle w/ Cleaning Patches Black. Made from 304 Stainless Steel with Black Nitride Coating. Specifically designed for using a cleaning patch with CLP on two critical areas to reduce cleaning time. Use a patch with the tool on the outside of the bolt tail & waste and with the bolt locking lugs. Excellent for your workbench cleaning kit or range bag. Specifications for Pro-Shot AR15/M4 Bolt Carrier Group Tool / Pull Through Handle w/ Cleaning Patches: Manufacturer: Pro-Shot Color: Black Features of Pro-Shot AR15/M4 Bolt Carrier Group Tool / Pull Through Handle w/ Cleaning Patches Patent Pending Design Package Contents: Pro-Shot AR15/M4 Bolt Carrier Group Tool / Pull Through Handle w/ Cleaning Patches Pro-Shot AR-BCGT: AR15/M4 Bolt Carrier Group Tool / Pull Through Handle w/ Cleaning Patches Black