I had similar sling shot "machine gunning" problem on my Firepower & Spybyron is correct - it's probably the switch that triggers the sling. It is worth the few bucks to purchase a tool for this purpose. Take a look here, it's called an "L contact adjuster"...you'll use it often.
New! Dark mode!
Browsing Pinside at night? Getting tired of all the white? Switch to dark mode using the button in the top right (or CTRL-B)!