Swep building help

Hello, I am trying to make my own Swep in Gmod (duh). What I’m trying to make is an automatic rifle with unlimited ammunition. That’s not the problem. The problem is, I’m trying to make it’s primary shot the AR2’s secondary shot. In other words, I’m trying to make an automatic Swep that shoots combine balls instead of bullets. Can anybody help me with this? I know most of it, I just have no idea how I’d make the primary fire be combine ball shots.

(User was banned for this post ("Didn't search" - mahalis))

If I get some time, Ill take a crack at this.

Make sure to give me credit if your going to release this.