Sig 556 magazine issues

wvtarheel · 01-22-2013, 03:04 AM

I was at the range sunday shooting my 522, and a guy downrange who was shooting a 556 came down to chat. I mentioned I owned a 556 bought just a few weeks prior to the beginning of the panic. He started talking about how much he loved the rifle but what a pain in the ass it was to find magazines that worked. I haven't shot my 556 yet due to the difficulty of finding ammunition for it right now but I was wondering...

Anyone have problems with their sig 556 not accepting certain types of magazines?

Anyone tried the promag metal or plastic in their sig 556? Thats what I've got but I haven't had a chance to shoot it yet.

Sent from my iPad using Tapatalk HD

CaptCaveman · 01-22-2013, 03:35 PM

Doesn't the SIG 556 have the same BCG and magazine as the AR15? I heard that SIG556 rifles use the same mags as AR15's but they don't like California mags because they are sadly limited to a gay 10rounds and they just hate New York 7 round magazines because they were designed to take normal capacity 30 round magazines.

P225sig · 01-22-2013, 03:52 PM

The first 2.5 to 3 inches of all AR mags are the same. How does a low to medium capacity mag differ from the 30 rounder to make them unusable in a 556?

CaptCaveman · 01-22-2013, 05:51 PM

Because it was designed to use a 30 round AR15 magazine and no self respecting AR or SIG 556 owner is going to even try a gay 7 shot magazine.. LOL.. So I'm just going to go and say that My rifle is not compatible with a magazine that has any less capacity than 20 rounds and only then because the US Army I was in had 20 and 30 round magazines.

P225sig · 01-22-2013, 07:11 PM

Being that you were in the army I am sure you have heard of the SPR/DMR which are issued with 10 or 20rd mags.
You gave the OP your opinion. I believe he was asking for facts .
Wvtarheel: sorry to have hijacked your thread. Hope you find someone with the answer. I do not own a sig 556 but own a LMT and it accepts all types of AR mags from metals to thermos.

CaptCaveman · 01-22-2013, 09:18 PM

Quote:

Originally Posted by P225sig

Being that you were in the army I am sure you have heard of the SPR/DMR which are issued with 10 or 20rd mags.
You gave the OP your opinion. I believe he was asking for facts .
Wvtarheel: sorry to have hijacked your thread. Hope you find someone with the answer. I do not own a sig 556 but own a LMT and it accepts all types of AR mags from metals to thermos.

We weren't all infantry in the Army and at that I've been out for a very long time. I don't believe we had anything with a Picatinny rail until after I got out.

I was just talking crap about magazines that hold a low number of rounds required by stupid laws and I'm flabbergasted that nobody is getting my joke. How can you take what I wrote in my tow previous posts and take them serious? Unless you love being restricted to a certain magazine capacity? I answered the question a few times however, it was with YES, AR15 Mags work in SIG 556.

wvtarheel · 01-23-2013, 02:53 AM

I have to laugh at the direction this has taken. I still haven't shot my sig 556, because ammo is so scarce in my area.

When it gets here I will try some of the mags I've got and report back.

I have promag brand metal and plastic, and both seat fine in the gun, but have a little "wiggle" to them which worries me they might cause me problems. We will see....

I was just wondering if other Sig 556 owners have found the gun to be picky on magazines, like I heard, or not.

Thanks

wvtarheel · 02-07-2013, 03:45 AM

FYI, both promag metal and plastic ar15 magazines work flawlessly in the 556

mgentry4 · 02-08-2013, 03:40 PM

I have a Sig 556R and it has issues with certain mags. It is suppose to take all or most AK mags but up front they tell you it won't accept US Palm mags - one of the best made AK mags. So I ordered Circle 10 mags - ordered 9 and the 556R would only load two of them. There is suppose to be a trick you can do with a dremel tool, got to get one. I hate to mess with such high quality mags but I need more than two for my Sig.

I also have a Sig 556 and I have used nothing but Magpul mags (20 and 30 rounders) and haven't had any issues at all.

wvtarheel · 02-09-2013, 03:42 PM

After all my fretting before and when I started this thread, I've had no problems at all. My 556 feeds fine out of aluminum mags, steel promag brand, and the promag plastic ones.

Godfryness · 02-10-2013, 06:06 AM

Quote:

Originally Posted by wvtarheel

I have to laugh at the direction this has taken. I still haven't shot my sig 556, because ammo is so scarce in my area.

When it gets here I will try some of the mags I've got and report back.

I have promag brand metal and plastic, and both seat fine in the gun, but have a little "wiggle" to them which worries me they might cause me problems. We will see....

I was just wondering if other Sig 556 owners have found the gun to be picky on magazines, like I heard, or not.

Thanks

I have owned two 556 rifles at different times. Amazing firearms. I don't know why they are not more popular. I like my 556 way more then my ar. I have never heard of any 556 having mag problems. None of mine ever have and I have about 4000 rds in the 556 I still have. Those days are gone! I only use pmags in my 556 but that's cus I like pmags a lot. The steel mag it came with gave me no problems. Hope this helps.

Chad

01-22-2013, 03:04 AM	#1
wvtarheel Junior Member Join Date: Jan 2013 Location: West Virginia, USA Posts: 10	Sig 556 magazine issues I was at the range sunday shooting my 522, and a guy downrange who was shooting a 556 came down to chat. I mentioned I owned a 556 bought just a few weeks prior to the beginning of the panic. He started talking about how much he loved the rifle but what a pain in the ass it was to find magazines that worked. I haven't shot my 556 yet due to the difficulty of finding ammunition for it right now but I was wondering... Anyone have problems with their sig 556 not accepting certain types of magazines? Anyone tried the promag metal or plastic in their sig 556? Thats what I've got but I haven't had a chance to shoot it yet. Sent from my iPad using Tapatalk HD

02-08-2013, 03:40 PM	#9
mgentry4 Senior Member Join Date: Dec 2010 Location: Central Mississippi Posts: 509	I have a Sig 556R and it has issues with certain mags. It is suppose to take all or most AK mags but up front they tell you it won't accept US Palm mags - one of the best made AK mags. So I ordered Circle 10 mags - ordered 9 and the 556R would only load two of them. There is suppose to be a trick you can do with a dremel tool, got to get one. I hate to mess with such high quality mags but I need more than two for my Sig. I also have a Sig 556 and I have used nothing but Magpul mags (20 and 30 rounders) and haven't had any issues at all. Last edited by mgentry4; 02-08-2013 at 03:43 PM.

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01-22-2013, 03:35 PM	#2
CaptCaveman Senior Member Join Date: Dec 2012 Location: Tolleson, Arizona Posts: 168	Doesn't the SIG 556 have the same BCG and magazine as the AR15? I heard that SIG556 rifles use the same mags as AR15's but they don't like California mags because they are sadly limited to a gay 10rounds and they just hate New York 7 round magazines because they were designed to take normal capacity 30 round magazines.

01-22-2013, 03:52 PM	#3
P225sig Senior Member Join Date: Dec 2010 Location: Ohio Posts: 308	The first 2.5 to 3 inches of all AR mags are the same. How does a low to medium capacity mag differ from the 30 rounder to make them unusable in a 556?

01-22-2013, 05:51 PM	#4
CaptCaveman Senior Member Join Date: Dec 2012 Location: Tolleson, Arizona Posts: 168	Because it was designed to use a 30 round AR15 magazine and no self respecting AR or SIG 556 owner is going to even try a gay 7 shot magazine.. LOL.. So I'm just going to go and say that My rifle is not compatible with a magazine that has any less capacity than 20 rounds and only then because the US Army I was in had 20 and 30 round magazines.

01-22-2013, 07:11 PM	#5
P225sig Senior Member Join Date: Dec 2010 Location: Ohio Posts: 308	Being that you were in the army I am sure you have heard of the SPR/DMR which are issued with 10 or 20rd mags. You gave the OP your opinion. I believe he was asking for facts . Wvtarheel: sorry to have hijacked your thread. Hope you find someone with the answer. I do not own a sig 556 but own a LMT and it accepts all types of AR mags from metals to thermos.

01-23-2013, 02:53 AM	#7
wvtarheel Junior Member Join Date: Jan 2013 Location: West Virginia, USA Posts: 10	I have to laugh at the direction this has taken. I still haven't shot my sig 556, because ammo is so scarce in my area. When it gets here I will try some of the mags I've got and report back. I have promag brand metal and plastic, and both seat fine in the gun, but have a little "wiggle" to them which worries me they might cause me problems. We will see.... I was just wondering if other Sig 556 owners have found the gun to be picky on magazines, like I heard, or not. Thanks

02-07-2013, 03:45 AM	#8
wvtarheel Junior Member Join Date: Jan 2013 Location: West Virginia, USA Posts: 10	FYI, both promag metal and plastic ar15 magazines work flawlessly in the 556

02-09-2013, 03:42 PM	#10
wvtarheel Junior Member Join Date: Jan 2013 Location: West Virginia, USA Posts: 10	After all my fretting before and when I started this thread, I've had no problems at all. My 556 feeds fine out of aluminum mags, steel promag brand, and the promag plastic ones.