umarex 416 upgrade hop up

[lloyd17]

I have a umarex 416 D and at the moment it has all standard parts except for a 6.03 mad bull barrel I was wondering what would be the best choice of hop up unit to improve the performance of the gun.

[BrightCandle]

What is the issue with it? Presumably something is going wrong that makes you think the hop unit itself is at fault for what is happening?

[lloyd17]

no nothing really wrong i was just looking at upgrading the hop-up to get a little bit of extra performance out of the gun

[Samurai]

Remove hopup and barrel, take it apart, and clean it with warm soapy water, then reassemble it.

If there is visible damage on the rubber, change it.

If it has a 1 piece hopup, you will get much more consistency if you glue a rubber spacer between the hopup and the body.