Ironman8
12-04-11, 19:35
Ok so I've been trying to figure this out, and just decided to start my own thread to get some ideas from you guys...
Here is what I want to do:
I have a Carbine VIS (7" handguard) and want to convert this to as short a suppressed/SBR package as possible.
Here is the plan:
Use an Ops Inc suppressor such as the M4M to index back over a longer barrel (vs an end mount suppressor) and sit flush with the end of the carbine VIS upper....this would yield an overall barrel/suppressor length of 13".
Why Ops? Mostly because they are one of the few that will warranty a 5.56 suppressor on a sub-10" bbl. Also, I can use a longer barrel due to the "indexing over barrel" design of the Ops suppressors. This would give better ballistics than would a 7.5" bbl with end mount suppressor. Also I'm going with the M4M over the M4S for the better suppression characteristics.
Based on my numbers and understanding about how an Ops suppressor mounts, I would need exactly 2.375" of barrel length behind the crown of the muzzle to mount the suppressor flush with the VIS 7" handguard (.625" of threads + 1.75" from the shoulder of the barrel to where the back of the suppressor indexes on the collar = 2.375")...we'll just call it 2.4" for simplicity...
Here's the problem:
Where do I find a 9.4" barrel with a pistol length gas system to make this work? (A carbine length gas system wouldn't work due to the gas block getting in the way).
Options that I've come up with so far:
1) Cut down a bbl with a midlength gas system right behind the gas port, and drill a new gas port where the pistol length port would be. (I believe that the gas port on a midlength is located at 9.8" based on some research, but I might be wrong)
2) Cut down a barrel with a carbine gas system to the length that I need, plug the gas port with a 4-40x1/8" set screw, and drill a new port at the pistol length position.
3) Get a custom barrel made to my specs...though I don't know who would do it or if this can even be done.
4) ???
If you guys have any suggestions or other options, then let me know. Please don't tell me "just get a 10.5" and be done with it"...I have done my research, know what I want, and don't mind the extra expense and trouble of cutting/threading/drilling a barrel. Just want to know if I'm missing something or not thinking about an easier option.
Here is what I want to do:
I have a Carbine VIS (7" handguard) and want to convert this to as short a suppressed/SBR package as possible.
Here is the plan:
Use an Ops Inc suppressor such as the M4M to index back over a longer barrel (vs an end mount suppressor) and sit flush with the end of the carbine VIS upper....this would yield an overall barrel/suppressor length of 13".
Why Ops? Mostly because they are one of the few that will warranty a 5.56 suppressor on a sub-10" bbl. Also, I can use a longer barrel due to the "indexing over barrel" design of the Ops suppressors. This would give better ballistics than would a 7.5" bbl with end mount suppressor. Also I'm going with the M4M over the M4S for the better suppression characteristics.
Based on my numbers and understanding about how an Ops suppressor mounts, I would need exactly 2.375" of barrel length behind the crown of the muzzle to mount the suppressor flush with the VIS 7" handguard (.625" of threads + 1.75" from the shoulder of the barrel to where the back of the suppressor indexes on the collar = 2.375")...we'll just call it 2.4" for simplicity...
Here's the problem:
Where do I find a 9.4" barrel with a pistol length gas system to make this work? (A carbine length gas system wouldn't work due to the gas block getting in the way).
Options that I've come up with so far:
1) Cut down a bbl with a midlength gas system right behind the gas port, and drill a new gas port where the pistol length port would be. (I believe that the gas port on a midlength is located at 9.8" based on some research, but I might be wrong)
2) Cut down a barrel with a carbine gas system to the length that I need, plug the gas port with a 4-40x1/8" set screw, and drill a new port at the pistol length position.
3) Get a custom barrel made to my specs...though I don't know who would do it or if this can even be done.
4) ???
If you guys have any suggestions or other options, then let me know. Please don't tell me "just get a 10.5" and be done with it"...I have done my research, know what I want, and don't mind the extra expense and trouble of cutting/threading/drilling a barrel. Just want to know if I'm missing something or not thinking about an easier option.