$45 Radian ambi charging handles in NP3 blems we're the best deal I saw. Lot of other stuff people might be looking for.
http://mailchi.mp/aimsurplus/great-deals-on-guns-ammo-parts-and-mags-at-aim-surplus?e=a27a11ab41
http://mailchi.mp/aimsurplus/great-deals-on-guns-ammo-parts-and-mags-at-aim-surplus?e=a27a11ab41