Evolution Gun Works (EGW) is renowned for its exceptional craftsmanship, employing advanced CNC machinery to manufacture premium barrel links in the USA. Each component is subjected to a thorough machining process, including spotting, drilling, reaming, chamfering and engraving, to ensure precision and durability. Made from heat treated 4140 chromoly steel, these barrel links are designed for strength and resilience. After machining, they are expertly blued to improve corrosion resistance and offer a sleek, professional finish. EGW components represent superior engineering and the excellence of American manufacturing. 0.268 inches, measured from center to center