No problem. I did a lot of research on these guns before I bought mine. It's a current production Ranch Rifle, 585 series. It's fun, I like the tiny Garand action it has. Like an alternative reality where the Garand/M14 was adapted into a SCHV cartridge in the late 50's. Here's a link to the bushings
https://www.ruger-mini-14-firearms.com/Gas-Reduction-Bushing-Kit.php. I used the .040 inch bushing and have good reliability, winter time needs higher pressure 5.56 to cycle well but in the summer the difference is night and day. Another thing to consider is installing a 1911 buffer on the rearmost end of the operating rod's recoil assembly. Keeps the rifle from slamming into itself as hard, even with the reduced gas pressure. I experimented with having another buffer on the foremost end but ended up with the rifle unlocking prematurely and invoking more reliability issues. Cogburn Arsenal makes some neat aftermarket parts, like stripper clip guides and bayonet lugs. A lot of people shit on the Mini, and the older ones were crap, but I like the history of knowing these neat little things were used in Rhodesia and Ireland, and it's kind of neat having a tiny Garand that shoots affordable effective ammunition. I just like em bros.