I like the Troy bad lever over the Magpul.
Don't get the Noveske ambi safety, it sux.
The Battle Arms Development Ambidexterous Safety Selector BADASS, is the nicest I've used. I especially like the 45 degree version. I prefer the standard selector on the strong side, and the hybrid for the weakside.
If brass in your face becomes a problem, look into a lefty reciever and bcg from stag.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul