Ruger Mark III magazine diconnect safety
For those who own a Ruger Mark III and do not like the magazine disconnect safety, there are several methods to employ to do away with this "feature". It can be argued whether or not a magazine disconnect safety is a desirable feature on a target pistol, or even for that matter a self-defense pistol, but with the Ruger Mark III series one thing is certain. Disassembly and reassembly with this "feature" is less than fun. And the fact that the magazine does not drop free but has to be pulled out of its well is also a bit of a pain.
The more common fix is to use a hammer bushing made by Volquartsen to replace the disconnect safety, a Mark II hammer and bushing assembly, or a bushing and washers purchased at a hardware store. One could also modified the disconnect safety so that it does not contact the magazine and the sear. But there is another option along the lines of the Volquartsen bushing.
There is a man in Canada who machines hammer bushings with stepped graduations to accommodate the Mark III hammer and not only does this remove the disconnect safety and make assembly/disassembly much easier, it also returns a better trigger. I just installed mine yesterday and it was well worth it. If anyone is interested, drop me a PM and I'll give you information on how to contact him. Here's a video of an install (yes there is contact information in the video);
Ruger 22/45 mag disconnect removal - YouTube