Brigadier PSA
If you're installing this on a Brigadier slide, be advised that you will have to do some serious fitting to the right lever. When driving in the roll pin (last step of installation) the lever will bind against the slide, making it nearly impossible to move. When I contacted Langdon Tactical about this they said it was an issue of tolerance stacking, but the new one they sent had the same problem. There are other reports of this on the internet. If you have some patience with a small file, a fine grit stone, and some cold blue you can make it work. I only need to fit the right lever. I removed some material from the edge of the cylindrical part (perhaps unnecessarily) and a lot from the underside of the lever itself, then touched up with a little cold blue. It now works as it should and doesn't rub against the slide.