Tm m3 super 90

[Kingluke23]

Anyone have any experience with these? Just got one second hand and I think the hop rubber may need replacing as the bbs have a vicious dip downwards even on .20s
While I'm fine pulling an aeg apart this is my first shotty and would prefer if someone else did it.
Pm me with a price if your up to it and are in the north west area. I'd say the range is about 70ft approx....
Cheers for reading