I'm a lefty, and have two Stags, a 6L and an 8L, which is the piston version. Both are great, never failed in any way. Also, the 8L has a dedicated left-hand safety, meaning it is not ambidextrous, which I really like, because the safety lever always bugs me on the left side of the ARs. You can also get a left-hand only safety from Stag and retrofit them on any AR.