Upgrade your 1911 with our premium single side HD thumb safety, designed for those who demand reliability and precision. This heavy-duty thumb safety is engineered specifically for the left-hand side to enhance the performance and durability of your firearm. Unlike standard drop-in parts, it requires professional fitting for a custom-fit that seamlessly integrates with your 1911. By replacing your stock thumb safety with our HD version, you gain superior control and confidence in every shot. Elevate your shooting experience with this essential upgrade, tailored for enthusiasts who value quality and craftsmanship. EGW is pleased to offer a thumb safety machined from solid steel, distinguishing itself as one of the few providers of this product Due to the frequent failures of substandard cast and MIM thumb safeties available in the market, we identified the necessity for a more robust and refined design To ensure the safeties remain as straight as possible, the steel must undergo heat treatment followed by machining in its hardened state The thumb safety features serrations to enhance grip capability Our thumb safeties are precisely machined using one of our twelve CNC machines