Which pcp airguns that have anti double feed feature. Let's share the knwoledge

Good point SeeOhTwo. I'm always checking the bar next to the power wheel on my impact, which is loose when not cocked, whenever I put the gun down to do something, or just walking around outside with it. I'd not like to see the gun get more overcomplicated with an anti double feed feature, but would like to see some sort of a cocking/loaded indicator.