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 collegeboy
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Posted: 3/2/2012 8:06:18 AM
[Last Edit: 3/2/2012 8:06:18 AM by Lancelot]
THE IMAGE ABOVE IS A PAID ADVERTISEMENT Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. |
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Posted: 3/1/2012 11:40:44 PM
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling.
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collegeboy
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Posted: 3/1/2012 11:48:16 PM
Originally Posted By jakhamr81:
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling. Is this really true? If that's really the case, then that just made up my mind. Thank you. |
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ratfink57
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Posted: 3/2/2012 7:56:12 AM
Originally Posted By collegeboy:
Originally Posted By jakhamr81:
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling. Is this really true? If that's really the case, then that just made up my mind. Thank you. Yep... Not enough barrel sticking out in front of the gasblock. |
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ratfink57
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Posted: 3/2/2012 8:02:45 AM
Originally Posted By collegeboy:
One of the guns I am building right now is going to have a Ops Inc 16th can and an Ops Inc M4S can (waiting for both of them to transfer to me) which can both be used with the gun. I have most of the gun built so far. I'm just waiting on the suppressors to transfer to me, and also my Form 1 to come back, then I will buy the barrel. I filled out the form for a 10.5" barrel, but it isn't hard to write the ATF a ltter letting them know I changed to an 11.5" if I decide to do so. The rail is a 12" Spikes BAR rail, so the cans will fit inside of it with either length barrel. Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. Should of just put multiple lengths on your app., i.e. 7, 10, 11, 12, 13, 14. Thats what I did. You can learn a lot of stuff in the Class 3 section of this forum. |
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Posted: 3/2/2012 8:34:14 AM
Oswald "Phil" Seberger OPS INC . GREAT SUPPRESSORS http://www.opsinc.us/index.html PASSED AWAY 11/02/2011
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evolution88
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Posted: 3/2/2012 9:48:41 AM
Originally Posted By jakhamr81:
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling. But, that's just just the OpsInc correct. I'm planning a AAC or Gemtech with QD on a 10.5 which should be OK? |
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bullyforyou
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Posted: 3/2/2012 9:56:05 AM
Originally Posted By ratfink57:
Originally Posted By collegeboy:
Originally Posted By jakhamr81:
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling. Is this really true? If that's really the case, then that just made up my mind. Thank you. Yep... Not enough barrel sticking out in front of the gasblock. i can't keep specifics on the OPS mounts straight, but this isn't true. some of the cans will fit on 10.5" guns provided you aren't using a standard FSB. if you are using a fixed FSB, you will need an 11.5" minimum. i run an M4S (which shares mounting with several of their other cans) on a 10.5" gun with a vltor LP gas block. the rear collar is just shorter than the other OPS collars. M4S on 10.5" with gas block: 
M4S on 11.5" with fixed FSB: 
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andrasik
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Posted: 3/2/2012 11:33:21 AM
Originally Posted By ratfink57:
Originally Posted By collegeboy:
One of the guns I am building right now is going to have a Ops Inc 16th can and an Ops Inc M4S can (waiting for both of them to transfer to me) which can both be used with the gun. I have most of the gun built so far. I'm just waiting on the suppressors to transfer to me, and also my Form 1 to come back, then I will buy the barrel. I filled out the form for a 10.5" barrel, but it isn't hard to write the ATF a ltter letting them know I changed to an 11.5" if I decide to do so. The rail is a 12" Spikes BAR rail, so the cans will fit inside of it with either length barrel. Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. Should of just put multiple lengths on your app., i.e. 7, 10, 11, 12, 13, 14. Thats what I did. You can learn a lot of stuff in the Class 3 section of this forum. You cannot put multiple lengths on an application. That will get your F1 kicked back. There is also no reason to send ATF a letter that you've changed the configuration. They request that you send them a letter, but do not (and cannot) require it. |
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bullyforyou
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Posted: 3/2/2012 11:39:04 AM
regarding fit - from what i gather, the 14th, 15th, 16th, M4M and M4S all share the same mount. so, all should be able to fit the following: 7.5" with pistol gas system and gas block 10.5" with carbine gas system and gas block 11.5" with carbine gas system an FSB i'd STRONGLY suggest you verify this with one of the OPS experts here before you buy anything though. give bigbore - steve at adcofirearms.com - a shout. he'd be able to tell you exactly what you need to know. |
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apricotshot
No Longer Tampa's Official Grenadier
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Posted: 3/2/2012 12:23:27 PM
If you go 12.5 inch you won't have to do anything special.
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bullyforyou
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Posted: 3/2/2012 12:42:47 PM
Originally Posted By evolution88:
Originally Posted By jakhamr81:
It would be pointless to put an ops inc can on a 10.5 inch barrel. Unless you are running a pistol length gas system you will have to use a special adapter to achieve the length from the gas block. You will end up with the same overall length, but with less rifling. But, that's just just the OpsInc correct. I'm planning a AAC or Gemtech with QD on a 10.5 which should be OK? it's not a brand issue. the OPS cans are "reflex" cans, where they install over a certain length of barrel. other cans that install similarly, like AAC's SPR/M4, have similar length and fitment issues. |
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collegeboy
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Posted: 3/2/2012 12:49:54 PM
Originally Posted By bullyforyou:
regarding fit - from what i gather, the 14th, 15th, 16th, M4M and M4S all share the same mount. so, all should be able to fit the following: 7.5" with pistol gas system and gas block 10.5" with carbine gas system and gas block 11.5" with carbine gas system an FSB i'd STRONGLY suggest you verify this with one of the OPS experts here before you buy anything though. give bigbore - steve at adcofirearms.com - a shout. he'd be able to tell you exactly what you need to know. Yea, I think I'm going to just call Adco and ask them for advice on Monday. They would know afterall. Thanks everyone! |
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bullyforyou
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Posted: 3/2/2012 1:02:02 PM
Originally Posted By collegeboy:
Originally Posted By bullyforyou:
regarding fit - from what i gather, the 14th, 15th, 16th, M4M and M4S all share the same mount. so, all should be able to fit the following: 7.5" with pistol gas system and gas block 10.5" with carbine gas system and gas block 11.5" with carbine gas system an FSB i'd STRONGLY suggest you verify this with one of the OPS experts here before you buy anything though. give bigbore - steve at adcofirearms.com - a shout. he'd be able to tell you exactly what you need to know. Yea, I think I'm going to just call Adco and ask them for advice on Monday. They would know afterall. Thanks everyone! FTR, if you run an OPS can in a configuration where it mounts up against the FSB, you'll have to trim off the bayonet lug. no that it really matters, but just so you know. |
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collegeboy
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Posted: 3/2/2012 3:45:15 PM
Originally Posted By bullyforyou:
Originally Posted By collegeboy:
Originally Posted By bullyforyou:
regarding fit - from what i gather, the 14th, 15th, 16th, M4M and M4S all share the same mount. so, all should be able to fit the following: 7.5" with pistol gas system and gas block 10.5" with carbine gas system and gas block 11.5" with carbine gas system an FSB i'd STRONGLY suggest you verify this with one of the OPS experts here before you buy anything though. give bigbore - steve at adcofirearms.com - a shout. he'd be able to tell you exactly what you need to know. Yea, I think I'm going to just call Adco and ask them for advice on Monday. They would know afterall. Thanks everyone! FTR, if you run an OPS can in a configuration where it mounts up against the FSB, you'll have to trim off the bayonet lug. no that it really matters, but just so you know. My setup will not have a front sight gas block. It's going under the rails. There won't be a bayonet lug anyways on this barrel. Thanks for the heads up though. Mike |
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ratfink57
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Posted: 3/2/2012 8:40:46 PM
Originally Posted By andrasik:
Originally Posted By ratfink57:
Originally Posted By collegeboy:
One of the guns I am building right now is going to have a Ops Inc 16th can and an Ops Inc M4S can (waiting for both of them to transfer to me) which can both be used with the gun. I have most of the gun built so far. I'm just waiting on the suppressors to transfer to me, and also my Form 1 to come back, then I will buy the barrel. I filled out the form for a 10.5" barrel, but it isn't hard to write the ATF a ltter letting them know I changed to an 11.5" if I decide to do so. The rail is a 12" Spikes BAR rail, so the cans will fit inside of it with either length barrel. Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. Should of just put multiple lengths on your app., i.e. 7, 10, 11, 12, 13, 14. Thats what I did. You can learn a lot of stuff in the Class 3 section of this forum. You cannot put multiple lengths on an application. That will get your F1 kicked back. There is also no reason to send ATF a letter that you've changed the configuration. They request that you send them a letter, but do not (and cannot) require it. Ah.. you are correct. I had to pull it out and check. It is in the "Additional Description" section that I noted other barrel lengths. Someone here told me to do that. But apparently that's not necessary. |
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Posted: 3/3/2012 4:42:41 PM
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Posted: 3/6/2012 3:09:12 PM
Originally Posted By collegeboy:
One of the guns I am building right now is going to have a Ops Inc 16th can and an Ops Inc M4S can (waiting for both of them to transfer to me) which can both be used with the gun. I have most of the gun built so far. I'm just waiting on the suppressors to transfer to me, and also my Form 1 to come back, then I will buy the barrel. I filled out the form for a 10.5" barrel, but it isn't hard to write the ATF a ltter letting them know I changed to an 11.5" if I decide to do so. The rail is a 12" Spikes BAR rail, so the cans will fit inside of it with either length barrel. Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. One thing you may want to consider if running a 12" BAR Rail over part of your suppressor.... If its a QD suppressor, you may want to consider if you will be able to remove the suppressor without having to remove the rail system first. I know you will be shooting suppressed all of the time, but just something to think about if you want to change things up or fix things in there... don't know how hard it would be to remove the BAR rail. |
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collegeboy
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Posted: 3/6/2012 5:21:01 PM
Originally Posted By CTran555:
Originally Posted By collegeboy:
One of the guns I am building right now is going to have a Ops Inc 16th can and an Ops Inc M4S can (waiting for both of them to transfer to me) which can both be used with the gun. I have most of the gun built so far. I'm just waiting on the suppressors to transfer to me, and also my Form 1 to come back, then I will buy the barrel. I filled out the form for a 10.5" barrel, but it isn't hard to write the ATF a ltter letting them know I changed to an 11.5" if I decide to do so. The rail is a 12" Spikes BAR rail, so the cans will fit inside of it with either length barrel. Obviously the gun will always be suppressed. Should I go with a 10.5" barrel or an 11.5" barrel? the 10.5" will fit in the rail better, but more importantly is how it will run and longevity of the suppressor and gun itself. I made a post about this months and months ago when I first bought the suppressors, but I figured it'd be cool to make a poll. Thank you very much for your opinions. One thing you may want to consider if running a 12" BAR Rail over part of your suppressor.... If its a QD suppressor, you may want to consider if you will be able to remove the suppressor without having to remove the rail system first. I know you will be shooting suppressed all of the time, but just something to think about if you want to change things up or fix things in there... don't know how hard it would be to remove the BAR rail. The Ops cans are threaded, so that won't be a problem with them. Mike |
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Posted: 3/6/2012 6:28:29 PM
The M4 mount suppressors(M4s, 14th, 15th, 16th model) need a minimum of 2.2" of barrel measured from the bare muzzle to the nearest rearward restriction. If your short barrelled rifle has onlu 1/2 inch of barrel behind the thread shoulder, they won't fit unless you use an adapter to add length to it. Rather than do that, you are better off to just go with a longer barrel.
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collegeboy
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Posted: 3/7/2012 2:13:11 AM
Originally Posted By k31user:
The M4 mount suppressors(M4s, 14th, 15th, 16th model) need a minimum of 2.2" of barrel measured from the bare muzzle to the nearest rearward restriction. If your short barrelled rifle has onlu 1/2 inch of barrel behind the thread shoulder, they won't fit unless you use an adapter to add length to it. Rather than do that, you are better off to just go with a longer barrel. Huh? There is a lot more that 1/2" of space behind the muzzle of a 10.5" barrel and a gas block. This isn't a question of it fitting. It fits under a Spikes BAR rail. This is a question of what is best...a 10.5" or an 11.5" barrel. |
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Combat_Jack
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Posted: 3/7/2012 2:33:20 AM
K31user is the guy who actually builds the OPS cans...
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Messiah
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Posted: 3/7/2012 10:02:19 AM
Originally Posted By collegeboy:
Originally Posted By k31user:
The M4 mount suppressors(M4s, 14th, 15th, 16th model) need a minimum of 2.2" of barrel measured from the bare muzzle to the nearest rearward restriction. If your short barrelled rifle has onlu 1/2 inch of barrel behind the thread shoulder, they won't fit unless you use an adapter to add length to it. Rather than do that, you are better off to just go with a longer barrel. Huh? There is a lot more that 1/2" of space behind the muzzle of a 10.5" barrel and a gas block. This isn't a question of it fitting. It fits under a Spikes BAR rail. This is a question of what is best...a 10.5" or an 11.5" barrel. 10.5" wont work unless you get a custom collar made to fit. 11.5" barrels with the M4 cuts will fit with no issues on a production brake and collar setup. My 11.5" Sabre Defence barrel. I run both a M4S and 16th model.  |
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Posted: 3/7/2012 11:19:13 AM
[Last Edit: 3/7/2012 11:20:19 AM by k31user]
Originally Posted By collegeboy:
Originally Posted By k31user:
The M4 mount suppressors(M4s, 14th, 15th, 16th model) need a minimum of 2.2" of barrel measured from the bare muzzle to the nearest rearward restriction. If your short barrelled rifle has onlu 1/2 inch of barrel behind the thread shoulder, they won't fit unless you use an adapter to add length to it. Rather than do that, you are better off to just go with a longer barrel. Huh? There is a lot more that 1/2" of space behind the muzzle of a 10.5" barrel and a gas block. This isn't a question of it fitting. It fits under a Spikes BAR rail. This is a question of what is best...a 10.5" or an 11.5" barrel. As long as you have 2.2" minimum from the bare muzzle to the first rearward obstruction on the barrel,(gas block, front sight, rear view mirror, etc) you will be fine with either barrel. Less than that will require a special fitting. |
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Posted: 3/7/2012 11:34:23 AM
I know for a fact it works with a 11.5
IMO its a better length then the shorter Choices |
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collegeboy
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Posted: 3/7/2012 10:53:19 PM
Originally Posted By k31user:
Originally Posted By collegeboy:
Originally Posted By k31user:
The M4 mount suppressors(M4s, 14th, 15th, 16th model) need a minimum of 2.2" of barrel measured from the bare muzzle to the nearest rearward restriction. If your short barrelled rifle has onlu 1/2 inch of barrel behind the thread shoulder, they won't fit unless you use an adapter to add length to it. Rather than do that, you are better off to just go with a longer barrel. Huh? There is a lot more that 1/2" of space behind the muzzle of a 10.5" barrel and a gas block. This isn't a question of it fitting. It fits under a Spikes BAR rail. This is a question of what is best...a 10.5" or an 11.5" barrel. As long as you have 2.2" minimum from the bare muzzle to the first rearward obstruction on the barrel,(gas block, front sight, rear view mirror, etc) you will be fine with either barrel. Less than that will require a special fitting. Thank for the reply. I didn't mean to come across as an ass by the way. I am sorry. I'm going to call Adco and ask his advice on this, but honestly, I'll probably just go with 11.5" to be safe. I already have a 10.5" switchblock Noveske upper anyways. What;'s the point in doing another 10.5" anyways you know? I'll try something new! Thanks again, Mike |
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