Vented ribs are designed to dissipate heat and prevent heat waves from distorting your view. Not all ribs are vented. While not as common, one will occasionally see a gun with a solid rib.
Ribs?
G
i just want to know what is the purpose the the vents or ribs on a shotgun barrel? They dont seem to vent anything the barrel is just as hot when fired alot and they give no room for a heatshield.
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