Twitch 2 bushings?

[goldensombrero6]

What kind of bushings does the twitch 2 have, if any? I'm thinking about getting one.

 

[sogflash]

I have a twitch XL tanto, but I have no idea what "bushings" are. could you explain?

 

[rycen]

Bushings aka washers

 

[Chameleonbear]

It's been a minute since I took mine apart to clean it. If I remember correctly, and there is no telling that I do, but I think it was copper and plastic bushings...