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Need help with suppressor sizing for 6933
6/25/2012 1:58:55 PM
Hi guys,
I have a 6933 incoming at the moment that'll be my first SBR. I ended up choosing the 11.5" over the 10.5" barrel just to get that little bit of ballistics improvement.
However, in choosing a can for this, I really love the look and OAL when a suppressor is just right up against or barely past the front sight post. Most 10.3/10.5 barrel pictures I see with a can, they look great.
I've seen a couple cans that have the reflex design where they come back over the barrel a bit, however, it's near impossible to find out if any of these will work and how they will look.
- For Surefire, it looks like the 556AR comes back over 2.75". So there's no way this would fit the 11.5" barrel without an extension right?
- For Gemtech, I'm looking at the G5, which seems to come back about 1.5". Is that right? Has anyone successfully put a G5 on their 6933 (or other 11.5" AR). Any pictures? Does it come close to the front sight post?
- I know Ops Inc. sells a few cans that come back over but I'm not interested in any of their models at the moment.
Any other well known brands that have cans that come back a bit that I'm missing?
Thanks!
I have a 6933 incoming at the moment that'll be my first SBR. I ended up choosing the 11.5" over the 10.5" barrel just to get that little bit of ballistics improvement.
However, in choosing a can for this, I really love the look and OAL when a suppressor is just right up against or barely past the front sight post. Most 10.3/10.5 barrel pictures I see with a can, they look great.
I've seen a couple cans that have the reflex design where they come back over the barrel a bit, however, it's near impossible to find out if any of these will work and how they will look.
- For Surefire, it looks like the 556AR comes back over 2.75". So there's no way this would fit the 11.5" barrel without an extension right?
- For Gemtech, I'm looking at the G5, which seems to come back about 1.5". Is that right? Has anyone successfully put a G5 on their 6933 (or other 11.5" AR). Any pictures? Does it come close to the front sight post?
- I know Ops Inc. sells a few cans that come back over but I'm not interested in any of their models at the moment.
Any other well known brands that have cans that come back a bit that I'm missing?
Thanks!
6/25/2012 2:29:47 PM
G5 doesn't reflex over the barrel, it is attached to the flashhider. The only ones I know of are the OPS inc., Surefire FA556AR and the AAC Spr/M4 (if you can find one). Spr/M4 won't fit without using a shorter gas block, rail combo.
Here is one on an 11.5 AR (not mine and hotlinked like a mofo), piston, but still gives you an idea
Surefire FA556AR (out of production)
Good luck, if you go quadrail, you have a lot more options.
Here is one on an 11.5 AR (not mine and hotlinked like a mofo), piston, but still gives you an idea
Surefire FA556AR (out of production)
Good luck, if you go quadrail, you have a lot more options.
6/25/2012 2:38:33 PM
jt, thanks for the reply. A couple of questions…
1. So I guess the G5 isn't a reflex can, but all the material I can find on it, it says that even though it's a 7" can, it only adds 5.5" to the OAL. Is that simply be because the flash hider itself is the 1.5" and that's what it's going back over, vs. a threaded option?
2. On the Surefire, that second picture you posted, that *has* to have an extension on it right? From everything I've read, the 556AR just won't fit on a 11.5" without an extension. But I have yet to hear definitively on that.
3. You mention the FA556AR is out of production, but it's still listed on their site. Is the FA556AR different from the model here: LINK
4. You mention that if I go quad rail I have more options. Can you please expand on that a bit? I plan on adding a standard KAC carbine-length rail, either FF or not, but either way, I'm not sure how that helps my options for suppression. Since I have the standard front sight block, I thought it was pretty much just my barrel length and FSP that's deciding what suppressor I can/can't use.
Cheers
1. So I guess the G5 isn't a reflex can, but all the material I can find on it, it says that even though it's a 7" can, it only adds 5.5" to the OAL. Is that simply be because the flash hider itself is the 1.5" and that's what it's going back over, vs. a threaded option?
2. On the Surefire, that second picture you posted, that *has* to have an extension on it right? From everything I've read, the 556AR just won't fit on a 11.5" without an extension. But I have yet to hear definitively on that.
3. You mention the FA556AR is out of production, but it's still listed on their site. Is the FA556AR different from the model here: LINK
4. You mention that if I go quad rail I have more options. Can you please expand on that a bit? I plan on adding a standard KAC carbine-length rail, either FF or not, but either way, I'm not sure how that helps my options for suppression. Since I have the standard front sight block, I thought it was pretty much just my barrel length and FSP that's deciding what suppressor I can/can't use.
Cheers
6/25/2012 4:46:37 PM
Originally Posted By TinyCrumb:
jt, thanks for the reply. A couple of questions…
1. So I guess the G5 isn't a reflex can, but all the material I can find on it, it says that even though it's a 7" can, it only adds 5.5" to the OAL. Is that simply be because the flash hider itself is the 1.5" and that's what it's going back over, vs. a threaded option? You nailed it in one, all the QD cans have an added length that is minus whatever their flashihider is.
2. On the Surefire, that second picture you posted, that *has* to have an extension on it right? From everything I've read, the 556AR just won't fit on a 11.5" without an extension. But I have yet to hear definitively on that.
this seems like a reasonable answer (http://www.ar15.com/archive/topic.html?b=6&f=20&t=291425)
"2. I don't know what Zack3g's configuration is. Surefire makes 3 mounts for the FA556AR suppressor: (1) CAM4FA556AR, (2) CA556AR203, and the (3) MB556AR. For (1) and (3), SF describes the mounts as requiring 2.75" of clear barrel past the muzzle. The description says that it will fit on 12.5" barrels and longer with the standard FSB. SF describes (2) being able to fit a 11.5" barrel with FSB, but no bayonet lug. The actual mounts are the same length, it is just that (2) does not overlap the barrel as much. "
Can be found here:
http://www.brownells.com/.aspx/pid=24412/Product/CA556AR203-COMPENSATOR-ADAPTER
3. You mention the FA556AR is out of production, but it's still listed on their site. Is the FA556AR different from the model here: LINK
All I know is what the good major tells me, maybe they brought it back? Doubtful though, not much call for it.
http://www.silencerforum.com/forum/showthread.php/492-Surefire-discontinues-the-FA556AR-amp-FA68AR
4. You mention that if I go quad rail I have more options. Can you please expand on that a bit? I plan on adding a standard KAC carbine-length rail, either FF or not, but either way, I'm not sure how that helps my options for suppression. Since I have the standard front sight block, I thought it was pretty much just my barrel length and FSP that's deciding what suppressor I can/can't use.
You can always run a lo-pro gas block or trim the FSB and run a longer FF rail to get the rail to a more standard suppressor. For instance, a troy 11" on a 11.5" with YHM phantom of some sort = just the look you want (also not mine, but I do have an 10-11"? Noveskerail on an 11.5, running a 762.SD
jt, thanks for the reply. A couple of questions…
1. So I guess the G5 isn't a reflex can, but all the material I can find on it, it says that even though it's a 7" can, it only adds 5.5" to the OAL. Is that simply be because the flash hider itself is the 1.5" and that's what it's going back over, vs. a threaded option? You nailed it in one, all the QD cans have an added length that is minus whatever their flashihider is.
2. On the Surefire, that second picture you posted, that *has* to have an extension on it right? From everything I've read, the 556AR just won't fit on a 11.5" without an extension. But I have yet to hear definitively on that.
this seems like a reasonable answer (http://www.ar15.com/archive/topic.html?b=6&f=20&t=291425)
"2. I don't know what Zack3g's configuration is. Surefire makes 3 mounts for the FA556AR suppressor: (1) CAM4FA556AR, (2) CA556AR203, and the (3) MB556AR. For (1) and (3), SF describes the mounts as requiring 2.75" of clear barrel past the muzzle. The description says that it will fit on 12.5" barrels and longer with the standard FSB. SF describes (2) being able to fit a 11.5" barrel with FSB, but no bayonet lug. The actual mounts are the same length, it is just that (2) does not overlap the barrel as much. "
Can be found here:
http://www.brownells.com/.aspx/pid=24412/Product/CA556AR203-COMPENSATOR-ADAPTER
3. You mention the FA556AR is out of production, but it's still listed on their site. Is the FA556AR different from the model here: LINK
All I know is what the good major tells me, maybe they brought it back? Doubtful though, not much call for it.
http://www.silencerforum.com/forum/showthread.php/492-Surefire-discontinues-the-FA556AR-amp-FA68AR
4. You mention that if I go quad rail I have more options. Can you please expand on that a bit? I plan on adding a standard KAC carbine-length rail, either FF or not, but either way, I'm not sure how that helps my options for suppression. Since I have the standard front sight block, I thought it was pretty much just my barrel length and FSP that's deciding what suppressor I can/can't use.
You can always run a lo-pro gas block or trim the FSB and run a longer FF rail to get the rail to a more standard suppressor. For instance, a troy 11" on a 11.5" with YHM phantom of some sort = just the look you want (also not mine, but I do have an 10-11"? Noveskerail on an 11.5, running a 762.SD
All I got man, I don't really look at Surefire suppressors, too pricey. Go FF rail and an AAC m42k, 762-sd-n, or AR-5/ar-7 when they finally come out, but whatever floats your boat, lots of good options out there. I just find that SF is too pricey for performance/features, but that is just me, they are a quality choice no doubt.
6/25/2012 4:58:21 PM
OPS INC seems to be what you'd want.
http://www.adcofirearms.com/acc/productLine_.cfm?brand=OPS%20INC&product_category=Silencers
From the ADCO site:
http://www.adcofirearms.com/itemdetails_.cfm?inventorynumber=3823
M4S Shown on 11.5" ADCO barrel
The M4S is their shorty, but the normal sized cans will just be longer in the front. I'd give ADCO a call and they should walk you through exactly what can and muzzle device/attachment you'd need for your purposes.
http://www.adcofirearms.com/acc/productLine_.cfm?brand=OPS%20INC&product_category=Silencers
From the ADCO site:
http://www.adcofirearms.com/itemdetails_.cfm?inventorynumber=3823
M4S Shown on 11.5" ADCO barrel
The M4S is their shorty, but the normal sized cans will just be longer in the front. I'd give ADCO a call and they should walk you through exactly what can and muzzle device/attachment you'd need for your purposes.
6/25/2012 7:31:18 PM
I have a 556AR and an M4S. I'd go with the OPS can. The SF is a good can but for that amount of money you can get an M4S and an M4M. There's no reason to use a can longer than an M4M or SF mini on an 11.5 as you will need hearing protection either way. I shouldn't say no, powder without flash suppressant may require a longer can to suppress for night shooting but that's almost exclusively a military consideration.
6/25/2012 10:03:31 PM
Ops inc is your best bet I think.
There good rugged suppressors in all different lengths, that will fit perfectly on an 11.5" with FSB.
You could get a low pro gas block and add a rail and standard QD suppressor.
There good rugged suppressors in all different lengths, that will fit perfectly on an 11.5" with FSB.
You could get a low pro gas block and add a rail and standard QD suppressor.
6/26/2012 1:04:34 PM
Originally Posted By Saddlerocker:
Ops inc is your best bet I think.
There good rugged suppressors in all different lengths, that will fit perfectly on an 11.5" with FSB.
You could get a low pro gas block and add a rail and standard QD suppressor.
Ops inc is your best bet I think.
There good rugged suppressors in all different lengths, that will fit perfectly on an 11.5" with FSB.
You could get a low pro gas block and add a rail and standard QD suppressor.
Thanks.
Can you please help explain why getting a rail and lower gas block would let me get a QD suppressor? I do plan on getting a rail (have them on all my ARs) but just not sure I'm understanding why a low-pro gas block would give me different suppressor options. You're the second one to mention it though so I feel like I'm missing something obvious.
Cheers
6/26/2012 1:30:07 PM
I think the lo pro might be set back farther on the gas port than the FSB , giving you a bit more space to work with. The gas port on a FSB is actually through the rear support, so there's ~1" difference between the front of the FSB and thegas port.
I think that may be what they're referring to
I think that may be what they're referring to
6/26/2012 1:32:03 PM
You can expose nearly an extra inch of barrel that way.
6/26/2012 8:43:35 PM
A longer rail will give you more real estate to get a good hold on the rifle
and the Suppressor can butt right up against it.
Depending on the length of the reflex your looking at, a QD could have a longer OAL, but alot of reflex cans are very long
I was looking at OPS cans for an 11.5".
I could have a 9" rail and the Ops M$s/M4M/14th/16th ect...
Or I can have a 10"-10.75" rail and a QD suppressor.
Im going with a BCM 11.5" with URXII rail and Surefire FA556-212
I value the rail-estate
and the Suppressor can butt right up against it.
Depending on the length of the reflex your looking at, a QD could have a longer OAL, but alot of reflex cans are very long
I was looking at OPS cans for an 11.5".
I could have a 9" rail and the Ops M$s/M4M/14th/16th ect...
Or I can have a 10"-10.75" rail and a QD suppressor.
Im going with a BCM 11.5" with URXII rail and Surefire FA556-212
I value the rail-estate
