Brownells – AR-15 Upper Receiver Cleaning Kits. For more information on Brownells AR-15 Upper Receiver Cleaning Kits, please visit
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I haven't got to use it yet but it appears to be like any other are brush i`ve used in the past.Fast shipping
here is the link to it in case anyone is interested: amzn.to15zJiqw
This was useful as an advertisement, but showing the effective use of these tools would have been more valuable for those new to the platform.