Handmade from flat bar and the trigger guard too, just like mine. I needed a solution to left side folder with left side charging handle that would not poke the user when slung, strong, quick to manipulate, could be used without a hand, didn't add a lot of weight to the carrier/weapon, simple, and generally did not add much width to the weapon. Not bad on the eyes was a welcome side effect. That design checked all of the boxes. A lot of thought went into my own weapon, the build template for evl grade builds.
I never liked others' efforts at left hand charging, save maybe the Lync