Reddit reviews Science Purchase 0604CAL6$ Stainless Steel Electronic LCD Digital Vernier Caliper Gauge Micrometer with Carrying Case, 6", Silver
We found 2 Reddit comments about Science Purchase 0604CAL6$ Stainless Steel Electronic LCD Digital Vernier Caliper Gauge Micrometer with Carrying Case, 6", Silver. Here are the top ones, ranked by their Reddit score.
Features with a large LCD display, easy to take readings. Come with Case and BatteryMeasures from .001" to 6" or .01mm to 150mmHardened stainless steel shaft with depth-measurement probe, precision ground jawsUsed for industrial work, hobby work, jewelry, gunsmithing, etc.Includes battery, zero reset and thumbwheel for precision adjustments and case; lifetime warranty
Any reason you can't measure the hole? Borrow/acquire a pair of vernier calipers to measure the hole. Harbor Freight and other cut-rate tool shops probably even have plastic ones that are 4-5 dollars or less.
You may find this helpful. I looked in all the wrong places before I found it. Also if you don't have a capiler this one will be goof enough for most projects in airsoft. This seems to further confirm to use the g36 nozzle (24.5mm). Good luck!