I was hesitant in buying these for my Brazilian clone FN-FAL but bought 4. Have not loaded them or fired them, only inserted them in my L1A1 and they snapped in as smoothly and cleanly as any magazine ever has into a rifle. Beautiful. These have the front lip on them. I also have the Springfield SAR-48 clone as well but alas, these magazines would not fit the SAR-48. They slide in, but will not lock into place.