Fit is too tight, slides on, no tighteners - Daniel Defense Vertical Foregrip With Soft Touch Rubber Overmolding

I like DD products. I have their replacement AR stock and while also a pain to get on, it’s extremely tight with no play once you do. I couldn’t get the foregrip on. You’re supposed to jimmy it on to the rail from the front. Two issues: the plastic shaves off when trying to push it on and you cant put it on without tearing it up. I have a standard 1913 pic quadrail, there is no reason this shouldn’t fit. It’s a bummer because I bought this for continuity with the stock and the grip is extra rubbery. I think DD should rework this design with some sort of locking or tightening mechanism in the future so it has a wider base of people who can utilize it. No knock on DD, they are pretty spectacular, just not with this foregrip.