I rently purchased an M1A and all I did before I shot it was run a patch down the bore. I shot about 300rds, some good, some junk. Anyway, now how do I clean it? Do I need to remove the gas cylinder plug?, if so, do I need a wrench? I tried it with my hands and I could'nt get it off, but I didn't want to do anything that would damage it, so I didn't take it off yet. Also, I have dissasembled it into it's 3 main sub-assemblies and the Birchwood casey's gun scrubber started dissolving my handguard, so I scrubbed what I could with hoppe's semi auto cleaner and a toothbrush. I also had to clean the bbl from the muzzle, is this the only way? And finally, what do I oil and what do I grease? (trigger assembly as well) ANY AND ALL HELP WOULD BE GREATLY APPRECIATED!!!!! BTW, It is the standard/synthetic with chrome lined bore and no matter how much I scrubbed, I could not get a clean patch. Thank you, Terry tck@provide.net. Any websites, books or video refrences you know of too please.