I have a Knights ambi safety selector up for sale or trade. Its new I bought a couple awhile ago, acutally before afghanistan. Have always deployed with these on my rifles. Its the military version so it has the ability to go to burst or auto if you need that. I do not have the original bag but its still brand new, has the small allen wrench also. You can clearly see on the side of this the KAC marking and with all my sales or trades if your not happy send it back. I will ship via USPS priorty mail so whatever price you offer will include shipping.
cheaperthandirt.com has these selling at $58.00 and heres a link to check it out and read reviews: http://www.cheaperthandirt.com/2KNAC25776-1.html
this is a stock photo but rest assured its the real deal and new never installed.
trades:
-stripped upper
-ammo
-fast fire mount or iron dot
-lower parts
-buffer tube
-gas tube in carbine length
-glock parts for 23
-IWB holsters for g23,commander 1911, ruger lcr
-trintium front sight post
also open to other parts or interesting items, throw it out I may bite!