Gun and mask are nice, but the CO2 tanks are 2 years old! I purchased two of these packages; One of the guns came with a CO2 tank dated 07/16 the other is dated 08/16. The hydro test certifications on this type of tank are no good after 5 years from the date of manufacture. These tanks were 40% into their useful lives when I received them. Sporting goods stores, hardware stores and paintball fields will not refill them after they are 5 years old.