WTT:A.R.M.S. #38 Swan Sleeve for your Troy folding front sight

[Eastbayguy]

Got it from another calgunner, never been mounted, perfect raiser for you scope, flip up rear sight:

http://www.mountsplus.com/AR-15_Accessories/AR-15_Scope_Rings/ARMS-38STD-556.html

Or sell it outright for 90$! Retail is $163.