Forster Headspace Gage .303 British NO GO

The Forster Headspace Gage .303 British NO GO is a precision-engineered diagnostic tool essential for verifying the safety and functional integrity of rifles chambered in this classic caliber. This gage is particularly useful for armorers, gunsmiths, and serious collectors who need to confirm that a chamber has not stretched beyond safe operational limits.

Maintaining proper headspace is critical for preventing case ruptures and ensuring the rifle action locks up securely under pressure. Manufactured to exacting tolerances, this NO GO gage represents the maximum allowable headspace for a safe chambering. If the rifle bolt closes completely on this gage, it indicates that the headspace is excessive and the firearm requires immediate repair or barrel setback.

This specific gage is a vital asset for those restoring vintage Lee-Enfield rifles or inspecting modern custom builds to ensure they meet modern safety standards. By using this tool, you can reliably identify worn barrels or improperly timed actions before they become a liability on the range. It integrates seamlessly into a comprehensive armorer's kit for routine field inspections.