Now se I've got a bit of a different take on the whole "damage to plastic is better than wood" idea and that is that damaged plastic can be nasty.. Scrapes can leave flappy bits that grase you, you can't sand it without of ruining the finish with white scratch marks, you can't cut it off without creating more flappy bits, you can't melt it flat without making it worse. I imagen it being a nightmare to be honest, not to mention the environmental impact of plastic and the "chuck away" connotations it inspires. Seriously give me wood (sustainably grown at least) anytime.
Its a shame really that the gun manufacturer's haven't yet caught on to the new breed of " hunt your own meat" sustainable living (dare I say it) "hippies" and come up with a recycled materials airgun!! Don't see why it isn't possible to be honest..
Rhys