Im going to be buying about 10 or 12 magazines and was wondering which one would be a little better to go with. i dont want to mix them cause im funny about stuff like that. my M4 is a bushmaster as well. but I those PMAGS are all the rage kinda, or would factory mags still be a better route to go. the price of the factory mags are just 5.00 more than the magpuls.