Looking for a do-it-all tool for your workbench? Whether you're building your first AR-15 or upgrading components on your range of rifles, having an all-in-one tool makes building and working on your guns easier than wasting time searching through your toolbox. This AR-15 Carbine Wrench/Multi-tool gives you all the tools you need to perform major work on your gun. Each AR-15 Carbine Wrench/Multi-Tool provides users with a durable castle-nut wrench, receiver-extension removal wrench, A1/A2 flash hider wrench and a bottle opener. The tool is made from durable carbon steel and features a corrosion-resistant black-oxide finish. The tools are all made right here in the USA.