PTG Headspace No Go Gauge

  • Product Family #: 1007256343
PTG Headspace No Go Gauge
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$16.34 - $69.99
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Regular Price: $52.99 - $69.99 Save up to $38.65 (70%)
Mixed Availability

Product Overview

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. If the action closes with this gauge inserted, then the firearm may not be within acceptable maximum headspace dimensions and should be examined further by a knowledgeable gunsmith.
No-Go Gauge

  • Duplicates the distance over the maximum allowable, from the case head (or boltface) to the datum line of the cartridge's shoulder, allowed within the chamber to secure a loaded cartridge and allow the breech to be closed in a safe manner for firing.
  • If the firearm locks up in battery when the gauge is inserted, then it is not within acceptable maximum headspace dimensions. The firearm should not be used and should be examined further by a knowledgeable gunsmith.


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Product Information

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Compatible With
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Delivery Information

Must Ship to FFL Dealer Yes
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Ships Alone Yes
Oversized Yes
DOT- Regulated Yes
Carrier Restrictions
  • Cannot ship via air
  • Cannot ship via USPS
  • Cannot ship to PO Box
  • Must ship to Contiguous US
HazMat Product Yes

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