WTT: GG&G Flip-up BUIS for a low profile flip-up BUIS

[flyandscuba]

Want to Trade:

I picked up a flip-up BUIS made by GG&G from Miles at Tradewinds. However, it is too tall when installed on the Adams Arms gas block of my 5.45x39mm AR-15. I need a low profile BUIS. I'm not picky on make or model -- but it must be metal. I can't use the plastic Magpul BUIS and the like. I'll trade you straight up for one that will work on my rifle.

Thanks!