The Composite Field Punch from Warren Innovative Technologies was designed as a lightweight, non-metallic punch for pesky pins on firearms.
The outer material is chopped carbon microfiber reinforced nylon and the inside is continuous carbon fiber, making the tool as strong as aluminum and practically weightless. The small loop on the side allows a parachute cord lanyard (dummy cord) to keep it handy with your other field tools. The butt of a knife or other object can be used to tap the larger end. The .20″ diameter tip will work for all takedown pins and perform many other tasks.
www.suppressortools.com/products/black-powder-warren-innovative-technologies-llc