AR15.Com Archives
 Throat erosion
SSgt82-02  [Member]
7/13/2011 8:14:25 PM
How do I check for throat erosion in an AR barrel? Is there a reasonable guage out there or does someone have the specs so I can have one made?

Old Marine
P08  [Team Member]
7/13/2011 10:22:10 PM
Brownells sells one.