This may be old news, but there's a high quality, mid price M870 springer available.
Made by UTG, it's a Chinese copy of Maruzen's CA870 spring powered shotgun.
[img]http://66.219.104.208/images/818a.jpg[/img]
Image courtesy
www.shortyusa.comThe "mag tube" is metal as are the cocking bars that attach to the pump grip. Gun is retailing for about $45 or so, fires at about 260 fps and seems to be higher quality than the all plastic (non Maruzen) ones available. It also has adjustable Hop-Up, which is a pretty slick feataure for a gun this inexpensive.
I'm thinking of picking one up myself.
"Time has little to do with infinity and jelly doughnuts."