Silicone gas for GBBR

[deezee_uk]

I've had a good look search (or have I?) and the loose advice is don't use silicone gas in a GBBR (specifically a WE L85A2) Can anyone give me advice? I've always put silicone lube on CO2 cylinders on other guns but this is my 1st green gas. Cheers.

 

[Lyndication]

Silicon gas isn't great in GBBRs because it doesn't lubricate the seals and instead sprays all over the hop unit. This can lead to feeding and accuracy issues because the hop relies on friction to function. The seals in GBBRs these days are usually viton or nitrile, not silicon, so they don't "soak up" the oil in the way people claim they do.

It's also not a very good lubricant because it doesn't prevent metal contact wear, and it spreads out very soon after application. It feels slick, but doesn't work well for Airsoft.

Generally you want a PTFE Grease for moving metal parts in a GBBR. I quite like Waldo's Pink Goo despite usually avoiding Airsoft branded stuff. It's a good mix of PTFE oil and grease that is slick but protects well.

For gas, I'd check ASG "brown" player's choice for warmer weather, or their red gas for the chilly weather. Nuprol now did a Zero green gas with white can that's silicon free as well.

 

[Impulse]

I use the ASG Ultrair line of gases in my guns. They do high powered red gas, a mid-powered orange gas and their standard "green" gas, which is deceptively in a brown bottle. I also have some Nuprol black gas, because my m14 and SVD need something a little more than red gas when it gets really cold (and Vorsk V12 gas is sold out everywhere), but I much prefer using the ASG gases and will probably just opt to not use my m14 (even though it's my favourite...) when it's really cold.