Large ring mauser bolt lug lapper

cults3d

This is a custom-made tool designed specifically for polishing the locking lugs on a large ring Mauser bolt. I utilized a 3/8-inch spring measuring 1-1/4 inches in length, which provides the necessary tension required for this task. To fine-tune the spring's tension, a 1/2-inch bolt is employed, extending 1/2 inch beyond the spring's ends. For those who lack access to imperial hardware, I've included a printable 3D bolt attachment that can be easily assembled with the spring. After printing the internal thread, it may be necessary to clean up any rough edges using a tap. Additionally, users can scale the printable 1/2-inch bolt along its x and y axes to achieve a looser fit, allowing for smoother operation.