ASG M40A3 Sportline Barrel Thread Adapter

thingiverse

This adapter fits snugly into the ASG M40A3 Sportline's barrel, where the orange tip once resided. It provides a secure connection point for standard 14mm negative (counter-clockwise) muzzle attachments. If your printer has a tolerance issue, you might need to enlarge this design by one or two percent. The model measurements are accurate, but circles and threads can occasionally appear smaller due to ABS's tendency to contract slightly during the printing process.