PTG No Go Gauge 6mm BR (Bench Rest)

$54.18

MidwayUSA$54.18Buy

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From MidwayUSA

Necessary when finish chambering a barrel or when checking the chamber of a used gun to be sure the headspace dimensions are within safe limits. This is a No Go Gauge only, and both a Go Gauge and a No Go Gauge are required to properly headspace a barrel. These No Go Gauges represent the upper limit of SAAMI specifications for proper headspace dimensions.