Sig556 Magazines.

Talk about the AR15 style rifles chambered in 450 Bushmaster.

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Sig556 Magazines.

Postby Maverick1 » Tue Sep 11, 2018 5:37 pm

Where can one find these sig556 mags that work with the 450? I have looked everywhere, seems they dont make them any more. Thanks
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Re: Sig556 Magazines.

Postby plant_one » Wed Sep 12, 2018 9:38 am

they showed up once a while back (2 or 3 months) for about 2 weeks and then they submarined back down to nowhere again.


i regret not getting a couple at the time, but money was tight so i was playing nice with the budget.
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Re: Sig556 Magazines.

Postby TonyRumore » Wed Sep 12, 2018 4:50 pm

iTAC Defense mags are the same.
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Re: Sig556 Magazines.

Postby Maverick1 » Thu Sep 13, 2018 9:12 pm

I have been searching and searching lol....I will look at the iTac for sure
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Re: Sig556 Magazines.

Postby Maverick1 » Fri Sep 21, 2018 9:22 pm

I found some and got them!!. Are there any mods I need to do? It seems like the last few rounds would benefit from a little moon cut in front of the follower.
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Re: Sig556 Magazines.

Postby plant_one » Fri Sep 21, 2018 10:29 pm

Maverick1 wrote:I found some and got them!!. Are there any mods I need to do? It seems like the last few rounds would benefit from a little moon cut in front of the follower.


fill them with ammo. you should be able to get 9 or 10 rounds into them.

have fun emptying them!
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Re: Sig556 Magazines.

Postby Maverick1 » Sat Sep 22, 2018 4:25 pm

Yes I can get 11 rds in them!!
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Re: Sig556 Magazines.

Postby Maverick1 » Mon Sep 24, 2018 6:08 pm

So I tested these at the range and one works flawless and one had an issue where the last round was kinda off to the side in the mag (because of the original follower ) ....... fluke? Or should I do something?
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Re: Sig556 Magazines.

Postby Bmt85 » Mon Sep 24, 2018 6:39 pm

I have no experience with the sig mags, but I know when I was playing with a few different 5.56 mags, I ground down the follower to give it a shallower angle. This helped prevent the rounds from hanging under the feedlips. Sometimes a round still ended up under the feedlips, but it didn't effect cycling.
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Re: Sig556 Magazines.

Postby Maverick1 » Tue Sep 25, 2018 5:45 pm

Bmt85 wrote:I have no experience with the sig mags, but I know when I was playing with a few different 5.56 mags, I ground down the follower to give it a shallower angle. This helped prevent the rounds from hanging under the feedlips. Sometimes a round still ended up under the feedlips, but it didn't effect cycling.


I will give this a try, thanks . I heard the sig mags work as they are but it just seems they work “better” as is.....
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