I have been shooting for a little over two years, owning common home defense and carry pistols (Glock, M&P, Springfield). I regularly do the field strip, clean, and lube routine and from the lack of problems with any of guns, believe I'm doing an adequate job. My question is what and when is any more advanced disassembly and cleaning needed, in your opinion? Never? After "X" rounds or "Y" years? Are we talking about a slightly advanced procedure or complete disassembly? I'm probably looking for a middle-ground between OCD and Pig-Pen.
Also considering picking up an entry-level AR-15. Same advice or a different story?
Thanks in advance for your opinions!