Much more comfortable than a stock grip - UTG Pro AR15 Ambidextrous Pistol Grip

This grip has a nice rubber texture and the finger molds make it very comfortable to grip. I got it for a .22 cal AR platform and the mfg told me it would not fit. Well it only takes a minor modification, trim off the tab above the top finger mold and drill a second hole beside the existing hole and it mounts perfectly. If you are modding your rifles, you should be able to handle that task.