We report the results of an experimental and kinetic modeling study of gas-phase reaction between methane and halon 1301 (CBrF3). At 1000 K, with an equimolar feed of CH4 and CBrF3 and at a residence time of 1 second, CHF3 and CH3Br are produced at selectivities in excess of 90%. Other reaction products detected include C2H2F2, C2H4, C2H2, and CHBrF2. Very good agreement between kinetic modeling and experimental results was obtained.