DIY Dissipator barrel from M4 carbine?

[AJAX22]

Could you use a pencil barrel FSB to accomplish the same thing?

[ar15barrels]

Could you use a pencil barrel FSB to accomplish the same thing?

If you had the patience, you could open up the bore on a 0.625" FSB to 0.720" or so as necessary.

[AJAX22]

What about turning down the tip of the barrel to .625 and creating a shoulder step to retain the handguard endcap?

It seems like it would be easier to reprofile the tip of the barrel than to ream the FSB.

[ar15barrels]

What about turning down the tip of the barrel to .625 and creating a shoulder step to retain the handguard endcap?

It seems like it would be easier to reprofile the tip of the barrel than to ream the FSB.

Sure, but you have to re-finish it...

[AJAX22]

What does a barrel re-park run these days?

[ar15barrels]

What does a barrel re-park run these days?

$20 to $50 depending on where you go.