KWA AEG 2.5 Ronin TK.45 CQBTK. 45 CQB AEG Variable THE NEXT EVOLUTION OF KWA AEGS The TK. 45 CQB features a much anticipated MLOK TML6 rail upgrade, updated flash hider, and traditional buffer tube for use with standard M4 butt stocks. This gives users much needed battery flexibility when paired with the PTS Enhanced Polymer Stock. The ultimate addition to the Ronin AEG lineup is here! The Tekken TK. 45 Series is available as either the field ready TK. 45 AEG Recoil carbine