BudsGunShop.com - Front grip handle

This is ambidextrous and mounts to the bottom picatinny rail (if present). If you have a M-Lok, Key-Mod or Madpul hand guard, you should install the shortest picatinny rail piece that the hand guard will fit on to save adding unnecessary weight to your rifle.

You can mount it on the bottom rail for semiauto fire or the side (many handguards have side rail) to help control full auto fire.

Mounts to the bottom picatinny rail (if equipped) and is good for left or right handers.

it's ambidextrous, its it mounts to the rail

Yes it will mount and it is Ambidextrous. So it will fit left or right handed.