For me, disassembly was a breeze, reassembly a frigin' nightmare. I share the OP's frustration. Had to get a gunsmith to reassemble and cost me $65 (although he did do a very thorough cleaning with the job). This website saved my bacon... http://www.1bad69.com/ruger/field_strip.htm Love my Mk-II but still cringe at the prospects of reassembly. Don't shoot it much anymore (have a Bersa Thunder .22 that is very enjoyable to shoot and a snap to disassemble/reassemble for cleaning). But every once in a while, shooting that Mk-II is a wonderful treat. I put Hogue rubberized grips on it, which made a huge improvement.