EzGoingKev Posted August 30 Share Posted August 30 This barrel came off an M4 I bought brand new in 2021. I sent it out to Rob Roberts Custom Gunworks to have the forcing cone backbored. It has never been fired. $500 shipped. I do not do PayPal/Zelle or any of the other online pay methods. Quote Link to comment Share on other sites More sharing options...
xblax619 Posted August 30 Share Posted August 30 please enlighten me: what does backboring the forcing cone do? Quote Link to comment Share on other sites More sharing options...
EzGoingKev Posted August 30 Author Share Posted August 30 https://youtu.be/JNZuG1m1cUY?feature=shared Quote Link to comment Share on other sites More sharing options...
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