M4 manual bolt-action rifle head

1、This rivet nut gun head is integrally formed without burrs, with a glossy exterior and glossy installation. 2、Made of alloy steel material, coated with anti‑corrosion paint, greatly improving the service life. 3、This riveter tip is easy to install, there are no complicated steps, and your time will not be wasted. 4、With good workmanship, perfect replacement for the old one and with stable performance. 5、Using professional manufacturing, high accurate helps to provide the best performance. Item Type: Rivet Nut Gun HeadMaterial: Alloy Steel Color: Black Diameter: Approx. 4mm / 0.2in1 Set Rivet Nut Gun Head