I recently purchased a BAD-ASS-45* Ambi Safety lever from Battle Arms Development. I've hated the 90* design on the AR platform, and after handling MP5s, I knew there had to be a better design on the market. Apparently, there is. I know this has been discussed here before and may not be new to alot of folks, but to me this is revolutionary.
Because a milspec lower will have "Safe" and "Fire" at 90*, the 45* safety will not point to fire when disengaged. Because of this, the safety will be shipped with a small pin to prevent it from being used in normal lowers as a liability reason. This pin is easily filed off with a hand file from a Gerber in a matter of minutes, maybe even seconds with a determined individual. After removing the pin (its made of a VERY soft metal and will go away easily, have no fear), the safety can be installed by removing your pistol grip, spring, detent, and original safety. Then place your 45* safety into your lower, screw your ambi throw lever into the opposite side, and then reinstall your components (simple stuff folks).
(Photo belongs to Battle Arms Development)
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The throw levers of your safety can be changed out with different offerings from BAD, including standard, thin, short, short+thin, hybrid, or a simple endcap to remove ambi features. BAD recommends two short lever, and I agree with them. I am currently sporting a standard and a short, but I just ordered a second BAD-ASS 45* with a Short and short+thin because I like this thing so much.
http://i47.photobucket.com/albums/f1...r/DSC01595.jpg
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The 45* engages with a solid click and offers extremely smooth operation. To switch it on and off, the only movement required is a simple flick of the thumb, rather than moving your hand with the original 90*. I'll never be able to go back to the normal setup again as this things is just genius.
http://i47.photobucket.com/albums/f1...r/DSC01598.jpg
http://i47.photobucket.com/albums/f1...r/DSC01600.jpg

