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View Full Version : Surefire MB556K Muzzle Brake/Adapter


Shawn L
03-02-2010, 2:36 PM
Anyone using this muzzle break? Pro/Cons? I'd like to put this on a 18in upper.

tomd1584
03-02-2010, 2:38 PM
con's would be the increase side blast. Pro's are faster on target, and ability to mount a suppressor.

I have one waiting to be attached to my barrel. Aftermath666 has a couple on his carbines too.

hopefully he chimes in!

X-NewYawker
03-02-2010, 3:11 PM
Love 'em!

http://i125.photobucket.com/albums/p54/Fasanoland/IBAArs.jpg

decrease recoil.

Shawn L
03-02-2010, 3:25 PM
^ Awesome!! So bad is the side blast?

technique
03-02-2010, 3:27 PM
^ Awesome!! So bad is the side blast?

I can tell you it is very loud. From the standpoint of shooting next to someone with one. You can feel it in your chest...

Trendkill
03-02-2010, 3:31 PM
I can tell you it is very loud. From the standpoint of shooting next to someone with one. You can feel it in your chest...

That outta really piss off all the old grumbly bench rester's at the range....they hate the new fandangled stuff to begin with , now theyre really gonna be cranky.

Fate
03-02-2010, 4:02 PM
Not recommended for Featureless AR builds as Surefire advertises its excellent flash suppression capabilities.

tomd1584
03-02-2010, 4:32 PM
Not recommended for Featureless AR builds as Surefire advertises its excellent flash suppression capabilities.
:dots::online2long:

oni
03-02-2010, 4:50 PM
The MB models are advertised as Muzzle Brakes
The FH models are advertised as Flash Hiders
The CA models are advertised as Compensators

Surefire does not specify on their site what the BATF classifies them as. If the BATF classifies the MB models as Flash Hiders/Supressors then they are NO GO on a featureless build.

The Surefire Muzzle Brakes are down right FANTASTIC. I have one on my 18" AR and follow up shots are really fast. The recoil goes strait back with little to no muzzle rise.

It is loud as hell and everyone around you hates you. But thats half the fun.

evollep3
03-02-2010, 5:01 PM
i wish i can find one

IsaacGlass
03-02-2010, 5:15 PM
That outta really piss off all the old grumbly bench rester's at the range....they hate the new fandangled stuff to begin with , now theyre really gonna be cranky.

Great idea :thumbsup: Good way to keep the bench next to me clear. Especially the newbies who likes to stand between aisle to take pictures.

tomd1584
03-02-2010, 7:23 PM
i wish i can find one

I'm pretty sure larue has them in stock.

surfNshoot
03-02-2010, 8:16 PM
Got one on my 18" upper. Love it!! Yes it is a pretty loud but not my problem, I'm behind it.

Fate
03-02-2010, 9:03 PM
The MB models are advertised as Muzzle Brakes
The FH models are advertised as Flash Hiders
The CA models are advertised as CompensatorsActually, I'm going to backpedal a bit on my previous statement about using it on a Featureless build. I looked again at the Surefire site and they're no longer touting flash suppression capabilities with the MB (at least that I could find). So we're back to the "if they sell it/advertise it as a MB/comp (without flash suppression benefits), it's defensible on a Featureless build."

Surefire does not specify on their site what the BATF classifies them as. If the BATF classifies the MB models as Flash Hiders/Supressors then they are NO GO on a featureless build.

BATF rulings hold NO weight against the CA Penal Code and the CA DOJ.

NinjafiedGun
04-17-2010, 12:09 AM
So are they legal on a AR or no?

Quiet
04-17-2010, 1:32 AM
So are they legal on a AR or no?

Depends on if the AR is a featureless build or a fixed magazine build.

Aftermath686
04-17-2010, 2:00 AM
I absolutely love it. Now this is a break, not a flash hider. So don't expect much as far as flash reduction is concerned. If your shooting at night, get a can. Most people don't like brakes because the concussion from it will bother the shooter to the left or the right. I have a couple friends with the same brake and it doesn't really bother me at all. In fact I ran a Magpul Carbine2 class about a year ago and throughout the whole class I was in between two of them. One on a SBR and another on my buddies 16in. Didn't bother me at all, and I spoke with the other shooters and it didn't bother them ether... I am not saying there is no concussion, I am just saying its really not bad at all. I think people get caught up in what they read and then go out and when they feel a little gush of wind and a bit of loud noise they automatically respond with "oh my god this is horrible." If you can't stand the heat get out of the kitchen. Recently I attended a Magpul HVWM class and was next to one again... Didn't bother me and I got no complaints. As far as muzzle rise, it is pretty much gone. Truly a night and day difference. You can shoot much faster while staying accurate. The one big negative is that when firing in the urban prone, the brake kicks up a flurry of dirt and rocks which can get in your eyes... This however can be remedied by a good pare of eye-pro. (learned that the hard way)

Bottom line is, if your looking for a brake, this is definitely one of, if not the best. Take all of this with a grain of salt as I am obviously a bit biased.

Someone was asking on where to get one. You can get them through LaRue, who stock them regularly and are good people. Also you can get them directly from Surefire, who are conveniently located in Fountain Valley, and there customer support is second to none. If your .Mil, LEO (I think firefighter as well) be sure to mention it as you can get a bit of a discount which can really help out on bigger orders.

On to some porn.
http://img.photobucket.com/albums/v496/aftermath686/DSC_0083c.jpg?t=1271494731

Richie Caketown
04-17-2010, 2:09 AM
doesnt Jeffu sell these?

NinjafiedGun
04-17-2010, 10:05 AM
Depends on if the AR is a featureless build or a fixed magazine build.

I'm pretty new and ignorant to what a featureless rifle is. Could you inform me of send me a link?

Much appreciated.

SarcoBlaster
04-17-2010, 10:08 AM
That outta really piss off all the old grumbly bench rester's at the range....they hate the new fandangled stuff to begin with , now theyre really gonna be cranky.
They can get over it or leave. You don't go to the range without expecting loud noises or to be hit by flying brass. That having been said, I'm not advocating setting up between two shooters who were already there knowing that your brake is going to direct the blast sideways.

thrillhouse700
04-17-2010, 10:11 AM
Love 'em!

http://i125.photobucket.com/albums/p54/Fasanoland/IBAArs.jpg

decrease recoil.

The top rifle, I have always wondered what kind of stock that is? I try to stay away from AR builds but I really like it. Now that I have asked on AR question Im sure this will spark a whole new interest.

Plisk
04-17-2010, 10:37 AM
The top rifle, I have always wondered what kind of stock that is? I try to stay away from AR builds but I really like it. Now that I have asked on AR question Im sure this will spark a whole new interest.

Top rifle: Magpul UBR Stock

Bottom rifle: Magpul PRS Stock

:)