BUIS Question

[ballz71]

Hello guys i recently purchased a upper its a flat top it came with a moe forearm and low profile gas block with no pic rail. I put my optic on there but i really want a set of BUIS. First problem is since i dont have a dedicated front sight and ive read that the moe hand guard shifts to much to use them. I was thinking about mounting some offset sights just on the uppper reciever. That gets me to the second problem the set of offset sights i have on my other rifle, will hang over the ejection port of i mount it to the upper. so Short of putting a a2 front sight or another gas block on it i am out of ideas. I was wanting to checked with you fellas and see if anyone has ran into this or if anyone has any suggestion or can point me to a product that can help me out. 

[TMF]

I would just get a gas block with at top rail, or a gas block with a sight integrated into it.  If you mount something to the upper to function as your front sight, the sight radius will be far too short.

[BrasilNuts]

What TMF said or get a railed forearm then BUIS.

[Kevo]

My pal has a lightweight flat top carbine with a 4×Acog mounted and he uses the backup sights on the top of the scope at pistol range distances just fine. At what range you want to be able to use "iron sights"?

[ballz71]

I was think about that but already have a optic that I like. I went on and ordered a gas block with pic rail thanks for the input again.