I'm trying to work a trade for a Feinwerkbau 600 10 meter rifle. Unlike the 300S I'm offering in exchange for it, it DOES have the front sight. BUT, just like the 300S I'm offering, it has no rear sight. Unlike the 300S it's not that easy to mount a scope due to the pellet loading mechanism. If any of y'all have such a contraption laying around, I'd love to know what it would take to convince you to offload it. Thanks!