NEW MK46A1 LIGHTWEIGHT TRIGGER FRAME FOR THE M249, MK46, MK46A1, MK48A1 FULL AUTO MACHINE GUNS THAT TAKE AR15 TYPE PISTOL GRIPS. TYPE III HARDCOAT ANODIZED MATTE BLACK . THIS ONE IS COMPLETE WITH ALL PARTS, DROP IN AND GO SHOOT. THESE HAVE A BUILT IN ENLARGED TRIGGER GUARD FOR WINTER MITTS USE.