The AR-TT Takedown Tool is the complete field stripping tool for all AR platforms. It removes the top pins, trigger pins, detent pin, buffer and spring, even the cotter pins holding in the takedowns. The end is reversable and unscrews to the smaller punch size. This revolutionary tool is patented, trademarked and copywritten. The AR-TT Takedown Tool is a complete 4-in-1 tool to takedown and field strip your AR Platform. It's very easy and safe to use and it's also extremely durable due to the black oxide heat treat that is done on every tool. Made in the USA! Mfg: Brownells