Forster headspace gauges are essential for measuring the chamber length of rifles, crucial for safety and precision when chambering a new barrel or purchasing a used firearm.
The gauges adhere to SAAMI specs, with the 222 Rem Mag field gauge being .0005 inch under 7.62 NATO NO-GO dimensions for safety.
Made of machined steel, the gauges vary in size by caliber and are interchangeable among cartridges with the same stock number.