Rival Arms RARA300001E Thread Protector 9mm Luger Gold PVD 416R Stainless Steel 1/2"-28 tpi
https://www.tandktactical.com/shop/788130030219-rival-arms-rara300001e-thread-protector-9mm-luger-gold-pvd-416r-stainless-steel-1-2-28-tpi-27044
https://www.tandktactical.com/web/image/product.template/27044/image_1920?unique=4ff2efd
The Rival Arms Thread Protector is CNC-Machined from 416R stainless steel billet results in superior corrosion resistance and durability.
