It looks like you could get detachable flip up sights and mount them both easily enough as there's a rail on the gas block and you would still have room for whatever optic you want. It would be pretty sweet actually. I'd probably put a vortex strike eagle 1-8x or similar scope on a quality return to zero mount on that rifle but that's just my preference.
If it's a full-length rail just get yourself a pair of Magpul flip-up sights (or any other brand of matching front and rear sights) and mount them on the rail. Eazy Peazy. If it's not a full-length rail the front sight needs to be a gas-block mount sight else they won't line up right.
Yes, in the pic you posted the mini front rail is integral to the gas block. Kind of an unusual configuration, to come in the box that way. But the front and back rails are level with each other so you could mount a rail-mounted flip-up front sight, so long as it's made from metal, and any rail-mount flip-up rear sight. Only Magpul's top-of-the line sights are metal, and they're expensive. UTG / Leapers makes decent metal sights that should work just fine for you. Make sure, though, that you don't accidentally buy the "gas-block-mount" front sight because it will be too high for that set-up. Been there, done that. Twice.
Yes, in the pic you posted the mini front rail is integral to the gas block. Kind of an unusual configuration, to come in the box that way. But the front and back rails are level with each other so you could mount a rail-mounted flip-up front sight, so long as it's made from metal, and any rail-mount flip-up rear sight. Only Magpul's top-of-the line sights are metal, and they're expensive. UTG / Leapers makes decent metal sights that should work just fine for you. Make sure, though, that you don't accidentally buy the "gas-block-mount" front sight because it will be too high for that set-up. Been there, done that. Twice.
Yes, if you peek in through the top of the fore end, you ought see a tube running from the front block back to the receiver.
