The Dead Air Armament Dead Air Muzzle Device Shim Kit for barrels with 1/2-28 or 5/8-24 threads delivers precise timing and compatibility by including three distinct shim thicknesses, designed to fine-tune alignment and performance of a wide range of muzzle devices. The kits packaging graphic clearly identifies each shims thickness and features, giving you quick reference during installation to ensure the correct combination is used. A key practical note for setup is to always place the thickest shim(s) on the barrel first, optimizing the fit and achieving consistent point-of-impact control with your Dead Air muzzle device. Engineered for reliability, these shims facilitate subtle, repeatable adjustments that help suppress harmonics and maintain barrel timing, contributing to improved shot consistency and accuracy in handgun configurations. Whether youre building a precision-ready handgun, performing routine maintenance, or chasing optimal timing after a new muzzle installation, this shim set from Dead Air Armament provides a straightforward, cost-effective solution for achieving repeatable results. Durable, purpose-built, and easy to integrate into your workflow, its a practical choice for any shooter seeking dependable muzzle-device alignment and performance.