03-22-2018, 04:10 PM
Anyone who has ever used an AR-15 variant will know that even the 30 round magazines are tough to use. Jams are frequent due to the high spring pressure. I could not imagine that one of those 100 round magazines would work if loaded more than 3/4 full due to the spring pressure that would be needed. You also would not want to load and store one of those with 100 in it. It would ruin the spring in no time at all. When my boys and I have used them, we generally only fill the 30's with 25 to avoid jams.