Tango Down FFA-01

Combining a front sight post with a tactical light, the FFA-01 will cowitness with your AR-15’s rear sight. It is light specific; Tango Down lists Surefire™ X300*, Surefire™ Mini Scout M300A and Inforce® WML lights be used. MSRP is about $125.00, so it’s not too expensive but would really be one of those purchases where you want something different to try out. (GRH)

Source 1 & 2