Spring/Piston What's the best grease ,

[Stevemo54]

Can someone please give me some advice on the best grease/oil for my hatsan airtact air rifle spring
. Many thanks.

 

[Hoppalong Doc]

Metal to metal contacts need a molybdenum impregnated heavy grease. No petroleum based oils should be used around o rings.

 

[Madhatter]

I've found using a tacky marine grease between the spring and the spring guide helps knock down the spring buzz. Try to not get it in front of the piston seal as it will cause dieseling. You don't need a lot.