This is the grip I was looking for in my Harris. I have these on all 3 bipods I use. A solid forward or backwards set can be locked in on pretty much any surfice. They will tear the *hit out of wood and scratch concrete, but will hold. I use 1.25″ barstool polymer ends for protection when using them on soft surfaces. These protectors also keep these hawk talons from destroying everything they come in contact with when in transit. Kind of a pain to install, but worth the time and money. There never coming off.