do you have the manual for your gun?
A quick search shows the below thay i copied from a website.
"This gun features an adjustable FPS feature in the bolt. There is a screw which adjusts the tension on the hammer spring that releases the gas from the mag."
also you could run it on duster gas
On Duster gas:300-550fps youll still need to adjust the fps but you can get it down to 450 on duster with the stock parts as you can see.
it should show you in the manual how to adjust the fps.
and as you see it maxes out at 750 fps on.20 on propane so even atvmax velocity it isnt a firearm, you need about 785 on .20 to make 5.7 joules
Originally Posted by m102404
Hectic....FFS start writing in coherent sentences!!!
Lvl. 3 certified sniper
Originally Posted by JDoorn
While your posts are sometimes a difficult read, you sure are helpfull