love my M6
i have a Stainless M6 with the take-down case:
I followed some of VShrake's advise from his website. I took a dremel to the front sight and back cut it so it would show up better thru the peep sight. also painted both front and rear peep sight black. replaced the back sling stud for a removable sling swivels. made my own sling with 1" tubular webbing. i also put on a Hammer extender to make it easier to get the hammer pulled back even in cold weather with frozen thumbs. bought two knife sheathes that can hang either on a belt or on a shoulder strap so they would run the same direction as the sling. in the sheaths i put a folding Camilus military knife and a mini-maglite. in the other i put a Silvia compass/match box. the stuff i keep in it can be seen in the pic.
the pic shows the barrels wrapped with paracord 550, but i have taken it off as i got worried that it may warp the barrels cause of how tight they had to be wrapped to stay in place.
to store ammo i went to Kmart and bought two Allen brand Rifle ammo wallets that attatch on the web strap on the outside of the gun case. in one wallet i keep 6 rounds of .410 winchester 3" shotshells and 6 Winchester 000 buckshot. in the other wallet i cut one stitch in each end to fit film canisters full of .22 ammo and i keep shot shells in the remaining shell loops. a wallet for rifle shells work better for holding the slim .410 shells.
i have gotten squirrels with both the .22 LR and .410 and find that they both work ok for what they are. i also get good pattern results with the winchester 000 buckshot. i will not put a scope of any type on this firearm cause i want to keep it strictly a survival arm, the K.I.S.S. doctrine (Keep it simple)
in the case i have a CRK&T M16 stainless folding knife with a tanto point; 100 round box of .22 LR & short ammo; 2 small, 2 medium Thompson Snares, 25 yards paracord 550 nylon rope; 40 yards decoy nylon line; bottle water purification tablets; Aitor Jr jungle skinner skeletonized knife; gerber multipliers; two Yo-Yo, automatic fishing reels with a stash of hooks, weights, line and bobbers. theres a military canteen and canteen case on the outside of the guncase that also holds a metal cup that the plastic canteen fits into. the only things i need to add is a Gerber sharpening/honing rod and a boresnake for cleaning.
I wish i could get flares for the .410 barrel, Springfield used to sell them, but i havent been able to find them.
i take this rifle/shotgun with me on road trips and vacations or trips up in the mountains. usually as a companion i also take my Ruger MK II 22/45 P4 4" pistol with extra ammo and clips. all in all, i like this little tool, i think the buckshot would work for self defense in a pinch or take a small deer for food only in an emerency. the trigger will take some experimentation and adaptation to get the right feel on squeezing it without canting the gun. oh, also, i forgot to mention, i also took that rediculous trigger guard off, hated that thing. Good luck, have fun. -Eric
PS. i wouldnt try to use any slugs out of the .410 barrel, the M6 is a full choke barrel, just my recommendation.