The Lone Wolf thread Protector is expertly crafted from premium 303 stainless steel, ensuring robust durability and long-lasting performance. This essential accessory is meticulously designed to safeguard your threaded barrel, providing reliable protection when no other accessory is attached. Its precision engineering not only prevents damage and wear but also maintains the integrity of your firearm's threading, ensuring seamless compatibility with future attachments. With its sleek and unobtrusive design, the Lone Wolf thread Protector is an indispensable addition for any firearm enthusiast seeking to preserve the quality and functionality of their equipment.This thread protector is compatible with .40 Cal threaded barrels, including 10mm threaded barrelsCompatible with all barrels featuring 9/16-24 threading