I recently got a Z-grip, and am trying to put it on my Mag. Originally, the mag I bought was a Tac-One. Since then, I swapped off the tac body for a ULE body. Still have the x-valve with lvl 10 bolt.

I got an RT Pro rail, thinking it would allow me to mount the z-grip and my Deadlywind CF foregrip. HOWEVER, I just realized there's these two triangle protrusions on part of the Z-grip, and it prevents me from having the rail mount flush to the grip. What did I do wrong? what do I need to make this work?

I'm relatively new to mags, so please be gentle and don't throw too many acronyms and stuff at me!