Dytac Barrel Nut Shim Set for M4 AEGs; Pack of 20

When installing or upgrading an M4/AR-15 AEG outer barrel or handguard, small tolerances can cause unwanted wobble or misalignment. The Dytac Barrel Nut Shim Set for M4 AEGs provides a simple and effective solution, allowing you to fine-tune spacing between components for a secure and properly aligned build. These steel shims are designed for use with Airsoft M4/AR-15 AEGs, barrel nuts, and help remove play between the barrel nut, receiver and outer barrel assembly. With multiple thicknesses included, you can stack or swap shims to achieve the exact fit required for your setup. This makes them ideal for custom builds, rail swaps or correcting alignment issues after installing new parts.