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Firing Pin Protrusion Gauge for AR-15/M16

Firing Pin Protrusion Gauge for AR-15/M16

  • 3227


Simple little bugger that indicates whether your firing pin sticks out the proper amount (between 28 and 36 thousands of an inch). Just hold it onto your bolt face and see what happens. You should be able to slide the max side past your firing pin with no problems but it should catch on the minimum side. 

  • Blackened metal constriction
  • Essentially a go/no-go gauge for your bolt and firing pin combination

You get:

  • (1) Firing pin protrusion gauge 

    Compatible with:

    • Any Firing pin in any bolt
    • Great to pare firing pins and bolts 

    Installation Difficulty: 

    Tools required: Nope

    Installation notes: Just hold it in place on your bolt face with one hand while you push the firing pin forward with the other hand. Do this with your bolt out of the BCG


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