Hard to follow Ryo's review. Let me cut to the chase. The BAD ASS ST is incredible.

As a left handed shooter I've been annoyed by the standard safety's bulk, and the "dig" in my trigger hand. I'm not one for modification of parts, but I seriously gave thought to grinding it down. So the BAD ASS was the solution. I use the short lever on my shooting hand and the long thin lever on the opposing side. Great feel and function.

And then there's BAD ASS ST. I have to tell you that at first I thought the 45 degree lever would be nice, but not really that big of a deal. Even after I gave it more thought and took into consideration that there were some real advantages to having the 45 degree throw, I just didn't imagine it would be that big of a deal. Well I was wrong. It really is that big of a deal. If you're building a new AR and you don't install a BAD ASS ST, you're making a mistake.

Just my two cents.