Forster Headspace Gage for 22 Rimfire No Go - HG22RIMN

This is a No Go headspace gage designed for 22 rimfire rifle chambers, used to verify proper chamber dimensions and detect excessive headspace that can affect accuracy and safety. Headspace gages are essential gunsmithing tools that measure the distance between the breech face and cartridge base when the action is closed. Proper headspace measurement helps prevent dangerous conditions such as unsupported brass rupture and gas leakage.