by Bmt85 » Sat Oct 20, 2018 6:39 am
They probably threw the 410 mag in there to save money and carry one less item. I have no clue how their mags are, but honestly, I would run something else. You have a lot options for 450b mags. One thing, though, chances are you going to want to tweak the feed lips. I have a couple different manufacturers 450b mags, and some converted 5.56 mags. I tweaked everyone, and they run without a problem. For me, I tweak them so the cartridge is slightly pointing up. Most have them are pointing straight, which looks like it could smack into the lower receiver-barrel connection, which some people have had. I also pull the ends of feed lips up a touch. My original 450 mag did this, so I do it on all of them, and they don’t seem to have issues.
-ASC mags are good, I have a couple. Will probably end up getting a couple more.
-I have a couple factory bushmasters that work just fine.
-Bartz (now Brenton USA) mags are suppose to be the best from what I hear, but I haven’t tried them, yet. Will probably pick up a couple of these as well. Don’t know if they offer a 9rd, though. I think it’s just 5 and 7 rd, which5 is all I need for hunting.
-There is a poly mag for 5.56 that works, I think it’s Sig. they aren’t available very often.
-Converted 5.56 mags need to be tweeted quite a bit, and most people run a single shot follower in them. I played with a couple extra 5.56 mags I had and got them to run without a single shot follower. They work, but honestly I prefer 450specific mags.