Hi,
Back in 1999 I bought my TM M4 second hand. It was stock and has worked perfectly for me since I got it; just normal maintenance required.
I recently upgraded to a m100 spring and metal bushings, so it was my first time taking the gearbox out/apart. Upon doing so, I found out that I had a EG700 motor inside.
I thought the TM M4 came with an EG1000. Did the earlier models come with an EG700? Or is it possible the previous owner from years ago switched it out?
Gun still works great, just curious is all....
Thanks and take care!