If you lost your manual, then look here and see if we have it available in Acrobat format for you. You will need Adobe Acrobat Reader to view or print these files. Warning- Some of these files are large (up to 7megs in size) and we recommend a high speed internet connection to download them. If your manual is not listed here, please email GunFighter Paintball ProShop in the "contact us" section and let us know which model marker or upgrade you have and we will get a manual for you.