Limit on Guns?

For some reason I have been having this issue where my game would not allow me to purchase more guns that it said the **** could handle as just guns. IE - There is a turret limit, and a gun limit, for some reason if it says I can have 4 guns, and 2 turrets, I can only get 4 guns and no turrets, or 2 turrets, and then 2 more regular guns. Any thoughts people?

Thanks

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That is the way it is in evo. In ev many people discounted secondary weapons and
just used turrets. However you can change this if you have any plug making skills

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Pcs? I don't need no stinkin Pcs