USPSA Box Check Gauge
This box is made for checking pistols for compliance USPSA rules.
USPSA Production and Single Stack:
"Handgun with empty magazines inserted must fit wholly within a box with internal dimensions of 8 15/16” x 6” x 1 5/8” (tolerance +1/16”, -0”) (USPSA Rules, Feb 2014)
This box is made close to the minimum size to be sure a handgun that fits this box will fit in any legal gauge. The gauge is made without a top so any areas that stick out of the gauge even the smallest amount can be easily identified.
1 - Place gauge on a smooth flat surface. Wood, thin cloth or plastic surfaces will help protect handgun finishes. (placing a US 1 Cent coin underneath each corner will add approximately 1/16" of height to the box if desired)
2 - Place handgun in the box
3 - Slide a ruler or other straight edge across the top of the box. If it does not catch on any part of the handgun, it passes the size test.