One few more things:
The bolt shroud is the black tubular extension on the rear of the bolt. Some of them were covered under a recall. You can check Ruger’s website to see if yours was affected. I don’t really even remember what was wrong with it. But they will send you a replacement. A lot of people would replace the bolt shroud with one from LRI. I’m not sure why. I guess it was better in some way. I still have the original and it works fine.
On the back of the shroud is a cap that unscrews. It is a tool that helps with bolt disassembly and there is also a hex key that will fit the trigger to adjust pull weight. That cap can and will unscrew and fall back into the tube that the bolt rides in. It probably has a name but it would be similar in location to a buffer tube on an AR. Take the cap off and put a tiny bit of thread locket on there and put it back on. Mine has come loose several times. It has never caused a problem but the potential is there.
The bolts seem to be machined by students in a high school vocational program and are also very prone to corrosion if you take it out in adverse conditions or live in South Carolina like me, where the humidity is currently 290%. Take some Flitz polish and a rag (or lightly with a dremel and polishing wheel) and work the bolt over. Pay special attention to the part that rides against the folding mechanism. It can lessen or get rid of that zipper noise that occurs when you cycle the bolt. Also, the Flitz will help prevent the corrosion on the bolt itself.
The Magpul LR/SR mags that came with it; sell them in the PX or throw them in the trash. Knight’s Armament M110 20 round mags are the cat’s pajamas. Never a misfeed in over 1500 rounds. The LR/SR mags it comes with suck. AICS pattern mags work well, AI or Magpul. But having 20 rounds on tap solves a lot of issues. Like never having to change a mag during a stage at a match, or in the case of a LE Marksman, worrying about running out of ammo.
I’m sure I’ll think of some more stuff. I’ll add it when it comes to me. I like mine a lot.
Pic for attention. At the Guardian Long Range Match at Frontline Defense in North Carolina. Day one was a frog drowner.
View attachment 7130857