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Suppressors Surefire Questions

S

sic65stang

Sergeant
Full Member
Minuteman
Dec 29, 2010
251
1
38
Virginia Beach, VA
#1
Hello all, I am getting very close to purchasing a Surefire FA762SS and wanted to ask a couple questions from you fine people. I understand this can be used on sub-calibers, but with what muzzle break, for example for a 556 would I use a 556 or a 762 break to attach the can? Also, I am wondering if this would work on an SKS. I know SKS uses a .311 projectile, so would this be able to pass through the can with no strikes, I would assume this would use a 762 break? Thank you guys for any input, also if you have any other info I should know about these suppressors please share.

Bob
 
#2
Re: Surefire Questions

Bob,

The 762SS suppressor can be used on sub calibers. The brake depends on what thread pattern the rifle is in and what caliber. If you buy a 762SS you would be limited to the reflex design brakes like the MB762SSAL/RE if you want a 5/8X24 brake where as if you were to put it on a 5.56 you would need the MB556SSN-1/2-28.

You could use this suppressor on a SKS but keep in mind the fact that if the threads are off and not concentric to the bore you could have a baffle strike.
 
#3
Re: Surefire Questions

OP, I searched high and low for weeks with the same question. I was originally told I could use the MB556 with the 762ss suppressor BUT the shoulder of the brake is different and will sometimes not allow you to lock it down all the way.

I to have/waiting on the 762SS suppressor but want to run it on my bolt gun (5/8x24) but want to run it also on my AR SPR that's (1/2-28).

Best solution I found I'd to run a reducer/adapter that screws onto my AR. I use a high temp glue or rocksett so it doesn't cone loose, then screw the 762SS muzzle brake onto it. The adapter allows you to run 5/8-24 threaded muzzle brakes on just about what ever you want to.

Surefire was suppose to make an adapter for this particular problem, and it was listed in the upcoming catalog for this year but it was scrapped due to lack of interest was what I was told by one of the Surefire Suppressor Representative.
 
#4
Re: Surefire Questions

Good Thread

http://www.ar15.com/archive/topic.html?b=6&f=20&t=338214

The second link is the thread adapter I used for my application, but they have several more. I also checked on feedback for stuff from silencer store and heard a lot of good reviews and that there stuff is concentrically threaded. Mine works well
smile.gif
 
#5
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Pusher591</div><div class="ubbcode-body">OP, I searched high and low for weeks with the same question. I was originally told I could use the MB556 with the 762ss suppressor BUT the shoulder of the brake is different and will sometimes not allow you to lock it down all the way.

I to have/waiting on the 762SS suppressor but want to run it on my bolt gun (5/8x24) but want to run it also on my AR SPR that's (1/2-28).

Best solution I found I'd to run a reducer/adapter that screws onto my AR. I use a high temp glue or rocksett so it doesn't cone loose, then screw the 762SS muzzle brake onto it. The adapter allows you to run 5/8-24 threaded muzzle brakes on just about what ever you want to.

Surefire was suppose to make an adapter for this particular problem, and it was listed in the upcoming catalog for this year but it was scrapped due to lack of interest was what I was told by one of the Surefire Suppressor Representative. </div></div>

Who told you this? The 556 MB specifically made for the 762SS can is the MB556SSN-1/2-28. The 762SS suppressor will lock onto it the same as it would a 762 brake.
 
#6
Re: Surefire Questions

Check the thread I posted above, strait from the horses mouth, Garin Lee.

I consulted Garin a few months ago and received the same response, SOMETIMES the 762SS supressor will not fully lock on the 556MB. Not all the time but sometimes and that was enough for him to recommend not to do it.
 
#7
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Pusher591</div><div class="ubbcode-body">Check the thread I posted above, strait from the horses mouth, Garin Lee.

I consulted Garin a few months ago and received the same response, SOMETIMES the 762SS supressor will not fully lock on the 556MB. Not all the time but sometimes and that was enough for him to recommend not to do it. </div></div>

Garin said the FA762SS will not fully lock onto the MB556AR because of the slightly different design and that is correct. That is why we make the MB556SSN-1/2-28. The MB556SSN-1/2-28 is the exact same brake as the MB762SSAL/RE except it has 1/2X28 threads and a smaller exit hole because of it being designed to work on a 5.56 gun. The MB556AR is not recommended for use with a FA762SS however the MB556SSN-1/2-28 is.
 
#8
Re: Surefire Questions

So there is a specific brake to use a 556 with a 762 can (MB556ssn)? My SKS is currently not threaded, so if I get it done I can get it threaded however I assume and it should be concentric. So I should have no concerns using that .311 diameter bullet with the 762/308 can? Guessing a standard 762ss brake for that too?
 
#9
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sic65stang</div><div class="ubbcode-body">So there is a specific brake to use a 556 with a 762 can (MB556ssn)? My SKS is currently not threaded, so if I get it done I can get it threaded however I assume and it should be concentric. So I should have no concerns using that .311 diameter bullet with the 762/308 can? Guessing a standard 762ss brake for that too? </div></div>

Yes the MB555SSN is designed specifically to be mounted to a .223 with a 1/2X28 thread pattern and to be used in conjunction with the FA762SS suppressor. It mounts up perfectly and there are no issues.

I am waiting to hear back to make sure that the 762SS has the same bore diameter as the 762K and I will get you that info as soon as I hear back.
 
#10
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chucky</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sic65stang</div><div class="ubbcode-body">So there is a specific brake to use a 556 with a 762 can (MB556ssn)? My SKS is currently not threaded, so if I get it done I can get it threaded however I assume and it should be concentric. So I should have no concerns using that .311 diameter bullet with the 762/308 can? Guessing a standard 762ss brake for that too? </div></div>

Yes the MB555SSN is designed specifically to be mounted to a .223 with a 1/2X28 thread pattern and to be used in conjunction with the FA762SS suppressor. It mounts up perfectly and there are no issues.

I am waiting to hear back to make sure that the 762SS has the same bore diameter as the 762K and I will get you that info as soon as I hear back. </div></div>

I talked to Garin about the MB556 SSN specifically and was told it is a NO-GO because of demand. Even though the 556MBSSN shows in this years catalog, it is not being produced. I was told by Garin himself that they will not produce without a certain minimum and nobody ever requested the minimum.

I mean I hope they do make it now but as of 2 months ago he told me they were not producing them.
 
#11
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Pusher591</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: chucky</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sic65stang</div><div class="ubbcode-body">So there is a specific brake to use a 556 with a 762 can (MB556ssn)? My SKS is currently not threaded, so if I get it done I can get it threaded however I assume and it should be concentric. So I should have no concerns using that .311 diameter bullet with the 762/308 can? Guessing a standard 762ss brake for that too? </div></div>

Yes the MB555SSN is designed specifically to be mounted to a .223 with a 1/2X28 thread pattern and to be used in conjunction with the FA762SS suppressor. It mounts up perfectly and there are no issues.

I am waiting to hear back to make sure that the 762SS has the same bore diameter as the 762K and I will get you that info as soon as I hear back. </div></div>

I talked to Garin about the MB556 SSN specifically and was told it is a NO-GO because of demand. Even though the 556MBSSN shows in this years catalog, it is not being produced. I was told by Garin himself that they will not produce without a certain minimum and nobody ever requested the minimum.

I mean I hope they do make it now but as of 2 months ago he told me they were not producing them. </div></div>

We are producing these and we have already made some and shipped them. If you need them please feel free to call SureFire direct or have your dealer place an order. We are waiting for the turning center to make some to fill the backorder and give us a positive stock but it is not nearly as a big of a seller as the MB556K,MB762SSAL/RE the SOCOM flash hiders and a few others so we don't make them as often. If anyone has any specific SureFire questions for me please email me at [email protected]. I am the military sales guy but have been working here now for almost 5 years and I know the product line pretty well.
 
#15
Re: Surefire Questions

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Sic65stang</div><div class="ubbcode-body">Chucky, Does surefire recommend or OK this can with 7.62X39? Also while I am asking these questions, Is this can ok with all the larger 30 cal variants IE 30-06 300WM? </div></div>

You are talking about the FA762K correct? We do warranty shooting 7.62X39 out of this suppressor. That being said I would make sure the threading of the barrel is concentric to the bore before putting my suppressor on and destroying it. This suppressor is rated for .300 win mag also.
 
#17
Re: Surefire Questions

Another question I just thought of if anyone knows, can you thread on and off a surefire break easily? For example if you have 2 308 rifles can you only own one break and one can and move the break from one to the other on the fly? I know they arent very expensive, JW if it could be done?
 
#18
Re: Surefire Questions

yea it could but it would be a PITA. honestly, you would have to 'time' it each time you put it on- major pain. but hey its up to you
 
#20
Re: Surefire Questions

It gets timed so the brake is oriented correctly to reduce recoil. I would not switch brakes back and forth. You risk getting the can carboned on and getting it out of the suppressor would be a pain.
 
#21
Re: Surefire Questions

Yes you can switch your brake on different rifles. Time each rifle with the correct shims and mark them with a sharpie 1 & 2 as you might be using some of the same shims on both rifles. It is not absolutely ideal but if you have a budget you can make it work by staying organized. I have done this with R&D designs. The break will not get stuck on the suppressor. You are using the same brake and the same suppressor just on a different rifle. It happens when you use a flash hider on one and a brake on the other rifle but the same can. The carbon deposits differently in the back section.
 
#23
Re: Surefire Questions

he was talking about it getting stuck on the brake like you were using the can as basically a thread on- just leaving the can on the break but I know what you are talking about kudu- if he can squeeze another 150 i'd just get another break-
 
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