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6/3/2006 12:36:58 PM EDT
For all those who have been waiting, things are looking up for the future



5/26/2006 4:59:34 PM EDT
[#1]
M4 Upper Video

11.5" Upper Video
5/26/2006 5:41:20 PM EDT
[#2]
Cool vids...

In the M4 video, is it normal for the suppressor to shed smoke like that ?

Smokes like my match rifle after dousing it with CLP, then running a 60 round stage.
5/25/2006 9:14:15 AM EDT
[#3]

Quoted:
Do you have a Surefire to weigh? I do, but I can't find my scale :( I am going nuts.



The only Surefire 556K I have in an opened box, the buyer alread took and installed the flash hider.

5/25/2006 9:16:09 AM EDT
[#4]
.
5/25/2006 9:27:52 AM EDT
[#5]
Wow, an A2 flash hider really is 2 ounces (2.067 is what I get).

First I zero the scale with an A2 on it.



Then put on a SCAR-SD with flash hider.



Then put on an M4-2000 with flash hider:



Then a Surefire with flash hider:



5/25/2006 9:43:27 AM EDT
[#6]
.
5/25/2006 9:51:02 AM EDT
[#7]
Mr 187,

I am not sure what you are trying to say.
5/25/2006 11:52:47 AM EDT
[#8]
Is he saying Ops Inc is an ouce lighter than Surefire?
5/25/2006 11:59:12 AM EDT
[#9]

Quoted:
Is he saying Ops Inc is an ouce lighter than Surefire?



I am not sure. They are what they are. I was not posting them to prove any point, just posting them for everyone's info.
5/25/2006 5:29:51 AM EDT
[#10]
Installed on 11.5" w/CAR gas system
5/25/2006 5:40:08 AM EDT
[#11]
Over-the-barrel designs are a tradeoff. They have less length past the muzzle, but more weight/dB. I am highly skeptical of them, but will eventually learn if I like them or not on a design level.
5/25/2006 6:12:06 AM EDT
[#12]
It weighs 17 ounces, and its just as quiet to the human ear as anything else out there.  The balance installed is a big bonus for me.
5/25/2006 6:42:12 AM EDT
[#13]

Quoted:
Over-the-barrel designs are a tradeoff. They have less length past the muzzle, but more weight/dB. I am highly skeptical of them, but will eventually learn if I like them or not on a design level.



This isn't about you, Robert.

5/25/2006 6:53:25 AM EDT
[#14]

Quoted:
It weighs 17 ounces, and its just as quiet to the human ear as anything else out there.  The balance installed is a big bonus for me.



Yeah, that could be true of any given design. I am more commenting on the philosophy of if over-the-barrel designs are the best direction for a designer to take.
5/25/2006 6:55:28 AM EDT
[#15]

Quoted:
Installed on 11.5" w/CAR gas system
www.adcofirearms.com/images/opson115.jpg



That is SWEEEET looking.
5/25/2006 6:55:37 AM EDT
[#16]

Quoted:

This isn't about you, Robert.




That was an esoteric comment for silencer designers so I reposted it in the silencer-smithing forum on my site: www.silencertests.com/silencer-forum/viewtopic.php?p=27073#27073
5/25/2006 7:57:53 AM EDT
[#17]

Quoted:

Quoted:


so, i'm assuming with the different length collars, that this suppressor will fit right down near the FSB on a 11.5"er, correct?





correct, it will look like its right up against the FSB.



So this suppressor, the 15th model, will fit on an 11.5" barrel but nothing shorter?  I want to SBR a lower and don't want to get the popular LMT 10.3" if it will prevent me from getting (using) a supressor in the future.  

Who makes the best 11.5" uppers?  Does LW make an 11.5" piston upper that can (pun?) use something other than standard M4 handguards?  Do they even make one that can use M4 handguards?

Sorry to spin OT so fast!
5/25/2006 7:59:50 AM EDT
[#18]

Quoted:
Installed on 11.5" w/CAR gas system
www.adcofirearms.com/images/opson115.jpg



Can we get a picture of that exact rifle with the can off and lying next to it?
5/25/2006 8:02:11 AM EDT
[#19]
Steve,

Can you weigh it?

If so, put an A2 flash hider on a postal scale and zero it. That is the baseline rifle. Then put the can + muzzle brake + collar onto the scale and see what it would add to the rifle.
5/25/2006 8:24:44 AM EDT
[#20]
...
5/25/2006 8:31:15 AM EDT
[#21]
5/25/2006 8:33:37 AM EDT
[#22]
Did you remember to zero it with an A2 flash hider on the scale by itself? That will legitimately save some measured weight.
5/25/2006 8:35:47 AM EDT
[#23]

Quoted:
Did you remember to zero it with an A2 flash hider on the scale by itself? That will legitimately save some measured weight.



Flash hider is exactly 2 ounces.
5/25/2006 8:41:33 AM EDT
[#24]
So it adds 18.6 ounces to a rifle that would otherwise have an A2 flash hider on it?
5/25/2006 8:53:00 AM EDT
[#25]

Quoted:
So it adds 18.6 ounces to a rifle that would otherwise have an A2 flash hider on it?




With the M4 collar, I wasnt going to take the SBR collar off the upper.  The SBR collar is probably a bit lighter because its  smaller.
5/25/2006 9:00:50 AM EDT
[#26]
Do you have a Surefire to weigh? I do, but I can't find my scale :( I am going nuts.
5/24/2006 4:20:20 PM EDT
[#27]
Are we to gather then that in your (bigbore) opinion the OPS inc is the best suppressor available currently? Or will be as soon as the flash suppressor mounts are available?

Will the suppressor work on a 16 inch gov't profile barrel? I see all this talk about "steps" in the barrel, are these essential for the suppressor to mount properly?
5/24/2006 4:32:30 PM EDT
[#28]

Quoted:
Are we to gather then that in your (bigbore) opinion the OPS inc is the best suppressor available currently?



The best for what? For who? For people like me who require a $200 stamp I think its an excellent option when you consider its price, weight, quality and length added to the barrel.

From my limited experience, at this time if I could only own 1 5.56 silencer, it would be a 15th model.



Or will be as soon as the flash suppressor mounts are available?



Personally, I have no interest in a flash hider mount. If I shoot at night, I'll have the can installed.  If a flash hider is that important, look at other silencer options.  If you would rather trade extra weight and length to get a flash hider mount, the options are there in other silencers.  




Will the suppressor work on a 16 inch gov't profile barrel? I see all this talk about "steps" in the barrel, are these essential for the suppressor to mount properly?



It would work great on a 16" barrel, most have the step needed for the M4 collar.
5/24/2006 5:23:59 PM EDT
[#29]
Roger that, I wasn't looking to trash the OPS inc. with my above questions, just asking for your opinion since you seem to have hands on experience with several of the current suppressor offerings from various manufacturers. With regards to the Flash suppressor Vs. Muzzle break issue, I just don't care for the increased muzzle blast that tends to be evident when using a muzzle break, all other things being equal i'd rather have the flash suppressor, which I understand is not far from being available so that's settled as well.

I'm looking forward to trying both the OPS inc. and AAC cans in person, i'm currently trying to find somewhere nearby where I can do so, because they seem to be the two front runners in the suppressor market today, both having credible proponents backing them up.

5/23/2006 7:40:01 AM EDT
[#30]
Wow, does that really stay tight? It seemed to have no friction.
5/23/2006 7:53:47 AM EDT
[#31]

Quoted:
Wow, does that really stay tight?



It sungs up into the shoulder of the collar, hasnt come loose on me.   I havent heard any reports of them coming loose on SPRs either.  
5/22/2006 8:33:57 PM EDT
[#32]

Quoted:
You are making a case for a thread-mount silencer. I don't want to debate thread-mount vs quick-mount. Some people will want lower weight and cost and give up the fast attach and detatch. That is not me and not what the military wants currently either.

It would make more sense to compare the Ops Inc to an SWR Wolverine, AAC Ranger, or Gemtech M4-02. Then go back and see which is lighter and cheaper.



If the Ops Inc is a "thread-mount silencer" then so it the YHM.
5/22/2006 9:01:15 PM EDT
[#33]
Cansomeone explain how the cam mounts in detail?  I'm not tracking on why one is better than the other...
5/22/2006 9:13:59 PM EDT
[#34]

Quoted:
Cansomeone explain how the cam mounts in detail?  I'm not tracking on why one is better than the other...



There are pictures on the first page.

5/22/2006 11:56:30 PM EDT
[#35]

Quoted:
Cansomeone explain how the cam mounts in detail?  I'm not tracking on why one is better than the other...



The OPS units have a proprietary muzzle device with small threads, the can threads on there internally and it's rear locks into a collar. To mount the can, you have to remove the thread protectors and screw on the can. With the AAC style 'big' threads you only need one twist to attach the can, and it doesn't use a thread protector that needs removing. However, we're talking mere seconds difference in speed here, and if mounting your can in 3 instead of 6 seconds (figures for arguement's sake) is imperative to you, chances are you probably should've mounted your can beforehand.

Anyway, there is no doubt that AAC cans are some of the very best there are, but OPS Inc was making cans long before AAC even existed, and their cans have been in use with the US military for 20 years now. OPS has the advantage of being truly battle tested.
5/23/2006 2:13:20 AM EDT
[#36]

Quoted:

If the Ops Inc is a "thread-mount silencer" then so it the YHM.



You bring up a good point. Can anyone report on how many rotations it takes to mount an M4-2000, YHM, and Ops inc?
5/23/2006 2:15:54 AM EDT
[#37]
Quick mounts are not to mount your can fast as much as they are to remove it fast if it fails. They also stay tight better than most threadmounts.
5/23/2006 2:24:35 AM EDT
[#38]

Quoted:
Quick mounts are not to mount your can fast as much as they are to remove it fast if it fails. They also stay tight better than most threadmounts.



Good point. I should have considered that as well. However, in removing a hot can, the user's ability to properly grasp it seems a far more decisive factor in removal than whether it takes one or three turns to unscrew it.

It's interesting to note that the KAC NT4 unit can be removed in case of failure by pushing the redundancy latch out with a bayonet and then firing a round. However, this likely destroys the can.
5/23/2006 2:31:26 AM EDT
[#39]
I don't think it destroys the can. I think Green0 posted that he did it four times. I think the KAC is a great assault rifle can, but people care so much about accuracy now.
5/23/2006 3:47:09 AM EDT
[#40]

Quoted:
I don't think it destroys the can. I think Green0 posted that he did it four times. I think the KAC is a great assault rifle can, but people care so much about accuracy now.



That's pretty cool. I think the KAC documentation stated that it would damage the can, but if it doesn't, i guess it's testament to the quality of the can.
5/23/2006 3:57:24 AM EDT
[#41]
It will damage it in the sense that dropping the can is also not recommended. But I don't see how it would internally damage it.
5/23/2006 4:03:07 AM EDT
[#42]

Quoted:
......

Anyway, there is no doubt that AAC cans are some of the very best there are, but OPS Inc was making cans long before AAC even existed, and their cans have been in use with the US military for 20 years now. OPS has the advantage of being truly battle tested.



So your saying they have been suppling the same design for 20 years? No improvements or changes? Let's see if 20 yrs of military use means an advantage then the Sonics cans of the 60s must really be good! Hell Sonics was around long before OPS even thought about existing.

Basically your above statement is worthless in proof that their cans are any better than any one elses. I don't mind people giving facts that support their claims but this one is worthless.
5/23/2006 4:32:02 AM EDT
[#43]

Quoted:
So your saying they have been suppling the same design for 20 years? No improvements or changes? Let's see if 20 yrs of military use means an advantage then the Sonics cans of the 60s must really be good! Hell Sonics was around long before OPS even thought about existing.

Basically your above statement is worthless in proof that their cans are any better than any one elses. I don't mind people giving facts that support their claims but this one is worthless.



No, i'm not saying that. The OPS .223 cans are now in their 15th version. They have been continuously improved as new materials and machining options became available. I'm not neccesarily saying they're the better cans, just that they have the advantage of extensive field use and government feedback. The 15th model OPS inc can is essentially the product of 20 years of field experience and improvement, and as far as i know no other suppressor manufacturer can make that claim.
5/23/2006 4:43:08 AM EDT
[#44]
Attach 15th model


Remove 15th model


The .mil may want what they want, but I doubt most of the people who get silencers on form 4s care if it takes 2 or 5 seconds to install and remove.  The LEOs I know with silencers have QD mounts mostly so they can remove the silencer after the fact, so the news crews dont see them walking around with silencers.  


If the OPS cans can be accessed, they will take a significant chunk out of the civilian market.  The only thing I see holding them back is general public ignorance, and the lack of any advertising/marketing.  

I would like to be able to offer side by side samples for customers (LE and form 4) to test fire.

An M4 with a 15th model, M42000, G5, and the Surefire.  

Considering size, weight, sound, and cost, I doubt the attachment mechanism will be a deciding factor.

5/22/2006 5:20:25 PM EDT
[#45]

Quoted:
why don't they just use the SBR collar on all of the models, what I mean is, why have 3 different collar designs?



Because there are at least different barrel designs in question....

The SBR collar mounts flush up against up against the FSB
The M4 collar sets up against the first step in the barrel
The SPR collar sets in the step cut into the SPR barrel.

The step in the M4 barrel is the same in every barrel- CAR gas system .
SPR barrels dont have the step in the same location as the SPR - rifle gas system.
Not all 11.5" barrels have a step.
5/22/2006 6:14:50 PM EDT
[#46]
I would want an Ops Inc can if they had a decent mount. The cans are excellent. I will be excited to see their flash suppressor.
5/22/2006 6:16:26 PM EDT
[#47]

Quoted:
I would want an Ops Inc can if they had a decent mount. I am sure the cans are excellent.



You have more experience than I do, whats wrong with the mount that its not acceptable?
5/22/2006 7:02:53 PM EDT
[#48]
It has no flash suppressor. It is just a little better than a normal thread mount. Not as good as the Surefire mount, or AAC, or YHM. Like I said, the can is excellent, but not better than AAC or Surefire.

Once again, the Ops Inc is an excellent can -- one of the very best. I am not saying it is a bad can. I know people will think I am saying that. It was a great choice for a long time (back when you could not get them) and still is an acceptable choice. It is a fully welded can that is made well. It has been passed by AAC and Surefire but I could see getting one as a usable collectable because they are in military service.
5/22/2006 7:24:54 PM EDT
[#49]

Quoted:
It has no flash suppressor.



It will soon.



Quoted:
It has been passed by AAC and Surefire but I could see getting one as a usable collectable because they are in military service.



In what ways are Surefire and AAC suppressors better?  

What advantages do the Surefire and AAC have over the OPS other than the mount issue?

Define "better" comparing them for use on a 14.5" M4 barrel.

Weight?
Length extended past barrel?
Durability?
POI shift?
Cost?

With each mentioned above how are the Surefire and AAC better?

This is an open forum,  you arent going to hurt my feelings by telling me something I dont know.

I sell all three, so I'd love to know as much about each as I can.




5/22/2006 7:34:10 PM EDT
[#50]
5-10 years ago KAC and Ops Inc were two superlative choices. Both were hard to get.

The good thing about the Ops Inc can, was back in the day, the KAC can was not that good for POI, but the Ops Inc was. Both were durable cans. The KAC had a faster mount, but the Ops was more accurate. So one would get the KAC for a carbine, and the Ops Inc for a precision rifle (SPR).

Now days, we have lots of choices. The Surefire can internally is just like the Ops. It is very light and durable, and sounds as good. It has a faster to use mount. While I don't have hard numbers on POI for both, it seems like Surefire, OPS, and AAC are all excellent in this regard.

All three are durable and light weight and all are accurate with minimal POI.

But the Ops has a significantly worse mounting system while not being better in any way.

The future is AAC and Surefire unless Ops kicks in and shows something new.

Once again, it is a GOOD CAN but I would personally get one only if I was building an SPR replica.
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