A color-filled AR-15 stripped lower receiver refers to a stripped lower receiver that has had the engraved markings on its surface filled with colored paint or epoxy. This process is typically done to enhance the visual aesthetics of the firearm and make the engraved markings more visible.When a stripped lower receiver is manufactured, various markings such as the manufacturer’s logo, model, serial number, and selector markings are typically engraved into the receiver. These engravings are usually left unfilled, resulting in a plain metal appearance. However, some individuals choose to fill these engraved markings with colored paint or epoxy to make them stand out.

The process involves carefully applying paint or epoxy to the engraved areas and then wiping away the excess, leaving the color only within the engraved markings. This can be done using various techniques, such as using a fine brush or a stencil.

The choice of color for filling the engraved markings is entirely subjective and varies based on individual preferences. Some people opt for contrasting colors that make the engravings more visible, while others may choose colors that complement the overall aesthetic of the firearm.

It’s important to note that modifying the appearance of a firearm, including color filling the engraved markings, should be done in compliance with applicable laws and regulations. Additionally, it’s crucial to follow proper safety precautions and consult with a knowledgeable professional or reference reputable sources for guidance when performing any modifications to firearms.