Brand New Digital 12 gauge Shotgun Bore Gauge/Micrometer 

PERFECT GIFT FOR THE SHOTGUNNER THAT HAS ALMOST EVERYTHING!! 

Lifetime Warranty

Includes calibration collar and spare battery

Shipping box doubles as storage 

When I started pattern testing I couldn't find a Bore Mic I was satisfied with so I had my own made.  

After multiple requests we started producing these.  All the internal components are precision machined locally on a Swiss-type CNC machine.  The aluminum tube is Type III Hardcoat Annodized so it is almost scratch proof and the head and collars are brass.  All American Made/Sourced with the exception of the indicator.  I personally hand assemble and calibrate each mic.