I like them too, but they are pricey.Battle Arms Development BAD-ASS
Gimmicky name, but they make fantastic products.
http://www.battlearmsdevelopment.com/bad-ass-ambi-safety-selector-ar15-ar10r
And the .mil has finally caught up, and it has an NSN on ambi selectors so unit armorers can install them as well as an MWO so all the 4's can be upgraded.You do realize that the standard right hand safety can be operated just as easily with the left hand thumb while gripping the pistol grip don't you??
10% - 15% of the U.S. Military are left handed.
And they have got along just fine with the standard right hand safety for about 50 years!!
rc