Doesn't fit well on picatinny rail!! - FAB Defense PTK VTS Foregrip/Thumb Support Combo

I purchased this grip because it's one of the best looking angles grips out there. I've also purchased Fab Defense pistol grips and had no issues with those so I assumed this would work great. After installing, the grip was extremely loose on the rail and had a ton of wiggle room from left to right. It also moved back and forth a bit as well. I ended up returning it because it was unusable. At the time of this review Fab Defense has released a M-Lok version of this grip, which was not available at the time of purchase or I would have gone with it instead.