Mark Brown Custom/SOTAR – MK2 AR15 Gas Tube Gauge

Description

U.S. SALES ONLY!

Mark Brown Custom & School of the American Rifle MK2 – AR15 Gas Tube Gauge

This version of the Gas Tube Gauge measures both ends of the Gas Tube without the need for Calipers or Micrometers. Great for range/field use or for the workbench. The MK2 also has a red reject line for better visibility.