I've been using a PRI GB for a couple of years, and got to try out a Gunfighter Mod 4 a few days ago. I have one on order and the PRI is going into the spare parts drawer. I like the PRI fine, and it's much better than a standard CH, but since I added the BAD lever, it feels like it's adding a lot of torque to the GB when I'm pushing up on the BAD to lock the bolt back, and I'm not pushing hard. I tried the same maneuver with the gunfighter and no problem. I didn't think I'd feel a CH that I would say felt more rugged than the GB, but the gunfighter does, to me.