Forster Headspace Gages are built to help you measure and verify rifle chamber headspace with reliable, repeatable precision. Headspace is the distance between the face of the breech and the base of the cartridge when the action is closed, and staying within safe specifications helps protect both accuracy and brass integrity.
Key Features
GO gage confirms the chamber headspace meets SAAMI minimum acceptable dimensions for 300 Blackout
Rimless case configuration for correct cartridge interface
Hardened steel construction for durability and stable measurements
Designed for straightforward gunsmithing and routine chamber verification
Check your chamber with the correct GO gage to establish a safe baseline before moving on to NO GO or FIELD dimensions.
