Gunnut69, I'm hoping you can give me some guidance on this. I've had this Colt replica for about ten years. This past summer it started acting up, not moving to the next chamber when I pulled back the hammer. Then I couldn't get the half-cock notch......it would go past it to the next click. Now it's just locked up. I've taken it apart, oiled it, put it back together......nothing.....it won't cycle. I know it's not worth much but I'd like to get working again. Any thoughts? Thanx, jd45.