This gamepass will give you:
1x Glock Carbine w/EXT
1x P80 Beam w/Suppressor
You must click the SPEECH BUBBLE in the gun store and scroll down to equip these. If you bought it in game, you have to rejoin.
Charts
Roblox disabled public game pass sales visibility in late July 2020. Sales data collected up to then is still available here for reference.