Info on the internet suggests KJW 1911 Mag Lips are a direct replacement for TM 1911 Mag Lips. (Single Stack) They are NOT! Good news is that they can be modified to work. If you run into this problem contact me after you purchase your parts and I'll help you out if you can't get it to work.
FYI - TM 1911 Mag Lips are extremely hard to find, so this seems to be the only viable option.
