WTS: M1014 Barrel Backbored By Rob Roberts Custom Gunworks

[EzGoingKev]

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. 

[xblax619]

please enlighten me: what does backboring the forcing cone do?

[EzGoingKev]

https://youtu.be/JNZuG1m1cUY?feature=shared

[Copo9560]

Did back boring remove some of the chrome lining?  Trying to understand how you could machine a bigger opening without getting into or through the liner.

[EzGoingKev]

Yes it did.