Lyman's mechanical trigger pull gauge is a simple, accurate and cost-effective way to measure the trigger pull load of your firearms. Made of tough machined aluminum and steel components, the gauge will stand up to years of use. The gauge features a rolling trigger shoe, "T" handle, a sliding indicator that registers your highest load and a zero-adjustment wheel. The gauge reads from 0 to 12 pounds in 2-ounce increments and is also equipped with a hanging loop for stor