Tool used to build, customize or maintain your AR. Manufactured from heat treated alloy steel and powder coated with a matte Olive Drab finish. Made in the USA. Comes with a lifetime warranty. Features include: Hammer, Barrel Nut, Muzzle Device, Spanner Wrench for old and new style castle nut, Beverage opener, Forearm Wrench, A2 Extension, 1/2 inch opening for socket wrench attachment, ergonomic handle, flat tip screwdriver.