Hi guys, just want to let all of you know that I really appreciate all the real good advice on this forum, I have really benefitted from your help and advice. So I thought I would throw out my two cents, and maybe I can help out someone else. Over a year ago my girlfriend bought me a new Guga Ribas Holster for Christmas. She had seen me fondling it earlier at the gun store when I was picking up my new SVI Infinty Sighttracker. Anyway, I spent quite a bit of time adjusting it and practicing my draw, but I still wasn't as comfortable with it as I was with my CR Speed WSM. However, I had to use it, she wouldn't of been too happy if I shelved it. There were a couple of times this year at matches where I bobbled the draw and the gun came out and I didn't have a good grip on it, just about dropping it! I realized that I didn't have the little screw that the trigger guard sits on adjusted properly, and the retaining arm closest to the belt did not seem to have enough tension on it, and the profile of the lug on that same arm looked like it needed some modification to fit the opening of the trigger guard properly. When I split the two halves of the holster (remove the allen head machine screw on the backside) I noticed that this plastic retaining arm looked inferior because too much of it had been sanded away during fitting and assembly, and the area above the pivot pin was very thin. I had heard of these breaking before, plus being made of plastic I thought it was probably flexing a little bit. When I tightened up the tension adjuster as far as it would go, all it was doing was completely compressing the spring, then the plastic arm was flexing under use.
So I came up with this solution which is working way better! With the outside lock off, I can hold the holster upside down, and the gun doesn't drop out, and it pulls out nicely on a draw. I found a heavier spring that would work, 5/16" dia x 0.047 wire dia, and I made a new arm out of aluminum that would not flex and break, plus I was able to custom fit it to the gun and leave it a little thicker around the pivot pin. I just used a scrap piece of aluminum flat bar and cut it on my band saw, drilled the 1/16" hole on the drill press, and used a right angle die grinder with a 3" 36 grit sanding disc to shape it, a couple of files to final fit, and then finished it by polishing the retaining lug. Total time, 2 hours.
This is a great holster, but I found that I was wasting time on my draws, because I was trying to be extra careful not to bump the gun out before I had a good grip on it. Now I don't have to worry about that. When shaping the lug on the arm, you have to be careful how much slope you put on it, too much, and it may reduce the tension holding the gun, not enough, and you might have to really tug to get it out. I also left out the brass bushing, it really isn't needed with the new arm, you can see that the slot in the end on the aluminum one is smaller, just enough to clear the end of the adjuster shaft. I would recommend that you back the adjuster all the way off before disassembling the holster, especially if you upgrade the spring, It will save stressing the threads that the machine screw threads into.
Best Regards, Nathan