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Posted: 1/31/2017 11:56:07 AM EDT
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Long story short, I will never buy a Radical Firearms Upper again.. /end story.
New story.. My Omega is coming in soon and it comes with what I believe is the 1/2x28 ASR 556 Mount, my gun smith wants a muzzle device when he re-threads this to check for accuracy.. My main question is.. should I end up getting the 7.62 1/2x28 ASR brake.. or should I get the 7.62 5/8x24 on the 6.5 Barrel.. Im asking because if its ok to run the smaller one I can drop the barrel off today since I already have the 556 ASR brake which is the same thread count.. Thanks in advance for any input. |
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Quoted:
Long story short, I will never buy a Radical Firearms Upper again.. /end story. New story.. My Omega is coming in soon and it comes with what I believe is the 1/2x28 ASR 556 Mount, my gun smith wants a muzzle device when he re-threads this to check for accuracy.. My main question is.. should I end up getting the 7.62 1/2x28 ASR brake.. or should I get the 7.62 5/8x24 on the 6.5 Barrel.. Im asking because if its ok to run the smaller one I can drop the barrel off today since I already have the 556 ASR brake which is the same thread count.. Thanks in advance for any input. I would say 1/2" thread is too small for a 6.5. |
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Quoted:
He just wants the muzzle device. Also the suppressor came with a 5/8x24 in 30 cal so its all good, the guy at the gun shop thought it was a 1/2 556. If he wants to obtain as close to a 3A spec fit as possible, this is not an unusual request. Especially given the fact that you are suppressing this weapon, my guess is the smith wants as close a tolerance as he can obtain. I can cut a 3A spec thread, that doesn't mean the muzzle device is cut to the same tolerance from the factory. Maybe it is? Crap shoot. Having the device gives him the ability to cut the thread to the device's tolerance. Baffle strikes are not conducive to a good reputation for the 'smith 
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I am assuming your can is a .30 caliber model. I would not use 1/2x28 threads for a 6.5. Several 6.5 Grendel barrel makers use an oddball thread half-way between 1/2x28 and 5/8x24. It's just easier to go with 5/8x24. You will have more choices when it comes to muzzle devices and plenty of clearance for a 6.5mm bullet.
I would like to see the entire industry go bigger with muzzle threading. Wilson Combat is now using 5/8x24 threading on their 5.56mm barrels. More material at the muzzle is always a good thing. |
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Quoted:
I am assuming your can is a .30 caliber model. I would not use 1/2x28 threads for a 6.5. Several 6.5 Grendel barrel makers use an oddball thread half-way between 1/2x28 and 5/8x24. It's just easier to go with 5/8x24. You will have more choices when it comes to muzzle devices and plenty of clearance for a 6.5mm bullet. I would like to see the entire industry go bigger with muzzle threading. Wilson Combat is now using 5/8x24 threading on their 5.56mm barrels. More material at the muzzle is always a good thing. Agree 100%. Well said. |
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Quoted:
If he wants to obtain as close to a 3A spec fit as possible, this is not an unusual request. Especially given the fact that you are suppressing this weapon, my guess is the smith wants as close a tolerance as he can obtain. I can cut a 3A spec thread, that doesn't mean the muzzle device is cut to the same tolerance from the factory. Maybe it is? Crap shoot. Having the device gives him the ability to cut the thread to the device's tolerance. Baffle strikes are not conducive to a good reputation for the 'smith Quoted:
Quoted:
He just wants the muzzle device. Also the suppressor came with a 5/8x24 in 30 cal so its all good, the guy at the gun shop thought it was a 1/2 556. If he wants to obtain as close to a 3A spec fit as possible, this is not an unusual request. Especially given the fact that you are suppressing this weapon, my guess is the smith wants as close a tolerance as he can obtain. I can cut a 3A spec thread, that doesn't mean the muzzle device is cut to the same tolerance from the factory. Maybe it is? Crap shoot. Having the device gives him the ability to cut the thread to the device's tolerance. Baffle strikes are not conducive to a good reputation for the 'smith +1, many companies use varying degrees of engagement. A high speed tapped thread is different from one cut on a screw machine or CNC lathe. |
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Unless someone swapped out the brake the Omega should ship with the 7.62 5/8"-24 brake. It is a .30 Cal suppressor, after all.
You want 5/8-24 threads. You don't want to run the risk of ever installing a muzzle device that won't allow the 0.264" projectile to pass. |
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Quoted:I would not use 1/2x28 threads for a 6.5. Several 6.5 Grendel barrel makers use an oddball thread half-way between 1/2x28 and 5/8x24 I am guessing you are referring to the 9/16"-24 thread that Alexander Arms uses. While it is a somewhat funky thread pitch they choose it because it is a lightweight profile barrel whose diameter would not support (not enough shoulder) the 5/8"-24 thread pitch commonly associated with .30 cal muzzle devices. |
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Quoted:
I am guessing you are referring to the 9/16"-24 thread that Alexander Arms uses. While it is a somewhat funky thread pitch they choose it because it is a lightweight profile barrel whose diameter would not support (not enough shoulder) the 5/8"-24 thread pitch commonly associated with .30 cal muzzle devices. Silencerco makes an ASR muzzle break that fits this 9/16x24 thread from AA. Be careful the ASR flash hider they make in 9/16x24 will not fit (threads go the wrong way) |
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