The SureFire high capacity magazine for 5.56x45 mm (.223 Remington) ammunition is compatible with M-4, M-16 and AR15 variants and other firearms that accept STANAG 4179 (standard M16) magazines. Constructed from Mil-Spec hard-anodized aluminum, they feed smoothly and reliably due to optimal geometry, non-binding coil springs, and ingenious nesting polymer followers. The long-lasting springs are cadmium coated for low friction and excellent corrosion resistance. Magazines require no lubricants and can be easily disassembled without tools for cleaning.

SureFire High capacity magazines provide distinct tactical advantages: increased initial firepower in ambush situations; fewer reloads overall, which means less downtime and target distraction in a firefight; fast and easy magazine insertion, even with a closed bolt; less bulk compared to drum mags, enabling a normal weapon grip.

The SureFire 60 round magazine is slightly thinner than two 30 round magazines clipped together and is about the same overall length. The SureFire 60 round magazine fits in most dual magazine pouches, eliminating special carry pouches required for drum magazines.

Are these mags working well in the M&P AR-15's? Does anyone have one and have any problems with it?

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M&P15,9MM,M66,22-A,Glock 30SF

Since the M&P 15's use standard spec lowers, I see no reason why the Surefire Mag wouldn't work.

I examined one at a gunshow over the weekend. It was interesting. It appeared very sturdy. I'd be more interested in how it affects how the rifle handles.

One observation, loading the 60 or 100 round variant seems like it would be a pain. If I ever bought one, I'd have to get a MagLuLa AR loader.

Have not used one. What I understand of them is they are a bit picky about how you load them. If you just jam ammo in, expect it to not be smooth coming out. But if you load them deliberately and carefully, they are said to work fairly well.

what's the price?

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Rod
M&P 22A, 40c, 15A, 15-22

What I just saw was $129 for the 60 and $159 for the 100!!

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Grover Oathkeeper

Wow, that's nine 30 round Pmags with change left over.

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M&P9/9C/Shieldx2/Sportx2/15-22

Too much!

I think they was $79 or $89 at my local store here.

Surefire Magazine AR-15 223 Remington 60-Round Aluminum Matte

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M&P15,9MM,M66,22-A,Glock 30SF

neat concept, questionable reliability from all the reports I've seen.

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CLEAR!

Geez, that's all I need is higher capacity mags ........I'd be burning up so many rounds and having to order more cheap ammo every time I set foot at the range!

No doubt. I'm trying to keep myself from loading all 30 in my PMags...

I load only 28 old habit.

Imagine the 100 round one and a bump fire stock, be empty in 15 secs.

That's no kidding right there!

Wow is right!!

Still, it's kinda cool

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Rod
M&P 22A, 40c, 15A, 15-22

150 for the mag, 33 bucks for that 100 rnd mag dump, 350 for the bump fire stock.....

Or, buy a M&P sport. Gee..... which one would I do...

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Rod
M&P 22A, 40c, 15A, 15-22