Ar-15/M16 Receiver Taps & Dies - Round Die 1''''dia, 1/4''''-18 Tpi For Ar-15/M16

Chases and cleans the two most important threads on the AR-15/M16 receivers. 1.250''''-18 tpi - Corrects out of spec or cross-threaded upper receivers and barrel nuts. 1-3/16''''-16 tpi - Makes receiver extension (recoil buffer) tube and lower receiver threads uniform for easier installation. Mfg: Brownells SPECS: High-speed steel. Plug taps; 2A 1/2'''' (6.3cm) diameter dies.