I owned both at the same time for several months. Nothing "wrong" with the build quality of maven c1s for the price, they're just not close to the build quality of the BX-4. The c1s had a tiny bit of slack in the focus wheel when changing directions and in the diopter adjustment. Eyecups did not...
Meateater books in great condition. Complete guide big game
Complete guide small game
Wilderness skills and survival
$30 shipped for all 3, or $15 each.
More pictures. These have side vents with mesh behind them to keep debris out, zippered pockets, nice wide leg openings with drawstrings to sinch them down over your boots. Really wish these fit me...