please help me adust the velocity on my 32 Degrees Delta 68 Paintball Pistol

[pbsk8ter219]

Please Help Me Adjust The Velocity On My Pistol. I Just Bought It A Couple Of Days Ago And It Didn't Come With A Manuel. I Went Paintballing And The Lowest I Was Able To Get It To Shoot Was 305. If Anyone Knows How To Adjust The Velocity Please Message Me Back Asap.

[xX H1Pp1 Xx]

type in the type of pistol it is, than look on the internet for a manual. Such as 32 Degree Delta 68 paintball pistol manual.