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Posted: 2/13/2021 7:47:26 PM EDT
[#1]
Most likely Rocksett. Soak the muzzle in hot water.
Clamp the bbl when removing. Eta pic:  Attached File |
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Posted: 2/13/2021 10:38:30 PM EDT
[#2]
Thank you and that makes sense. I believe this to be a factory assembled upper. Does anyone know for sure?
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Posted: 2/14/2021 3:17:20 AM EDT
[#3]
My sr15 flash hider was a bitch to get off even after soaking for 24 hours.
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Posted: 2/14/2021 9:50:25 AM EDT
[#4]
Quote HistoryQuoted: My sr15 flash hider was a bitch to get off even after soaking for 24 hours. This is what I was afraid of. What did you end up doing exactly to get it off? |
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Posted: 2/14/2021 8:22:30 PM EDT
[#5]
If able, get ahold of a knightstick (KACs barrel extension tool), will make things quite a bit easier.
 Attached File |
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Posted: 2/14/2021 8:50:52 PM EDT
[#6]
Clamp the bbl for any MD work, especially removal .
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Posted: 2/15/2021 12:08:38 AM EDT
[#7]
Quote HistoryQuoted: If able, get ahold of a knightstick (KACs barrel extension tool), will make things quite a bit easier. https://www.ar15.com/media/mediaFiles/173915/Screenshot_20210214-182042_DuckDuckGo_jp-1825625.JPG You risk spinning the extension loose with those. |
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Posted: 2/15/2021 12:09:49 AM EDT
[#8]
Quote HistoryQuoted: Clamp the bbl for any MD work, especially removal . This ^^^ All day long and twice on....well you know.... 
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Posted: 2/16/2021 8:39:52 PM EDT
[#9]
OK good advice all around. I am thinking that I might have my buddy the gunsmith do it.
Any advice on the best way to clamp the barrel? |
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Posted: 2/16/2021 9:57:07 PM EDT
[#10]
Any advice on the best way to clamp the barrel? I made barrel vice "jaws" out of two pieces of maple with a V groove cut in each. The barrel rides in the V and rounds it out under clamping pressure. |
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Posted: 2/16/2021 10:33:27 PM EDT
[#11]
Vise jaw barrel pads from Squirrel Daddy. $18 shipped. This ones has been cut down, and yours may need a bigger vise and a larger piece of leather. Worse case scenarios may require V-blocks and a hydraulic shop press
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Posted: 2/17/2021 9:53:15 AM EDT
[#12]
Quote HistoryQuoted: Clamp the bbl for any MD work, especially removal . Not possible with KAC Mod 2s, may be possible with the SR16 the OP has, but access to enough barrel to clamp in a vise without having to remove the rail may be an issue. I'd wager that KAC would recommend the barrel extension wrench method. |
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Posted: 2/17/2021 11:04:25 AM EDT
[#13]
Quote HistoryQuoted: Not possible with KAC Mod 2s, may be possible with the SR16 the OP has, but access to enough barrel to clamp in a vise without having to remove the rail may be an issue. I'd wager that KAC would recommend the barrel extension wrench method. You're probably right. https://www.ar15.com/forums/Industry/Removing-Flash-Hider-from-a-SR-15-CQB-Mod2/381-294583/ |
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Posted: 2/17/2021 11:51:29 AM EDT
[#14]
Quote HistoryQuoted: Not possible with KAC Mod 2s, may be possible with the SR16 the OP has, but access to enough barrel to clamp in a vise without having to remove the rail may be an issue. I'd wager that KAC would recommend the barrel extension wrench method. Quote HistoryQuoted: Quoted: Clamp the bbl for any MD work, especially removal . Not possible with KAC Mod 2s, may be possible with the SR16 the OP has, but access to enough barrel to clamp in a vise without having to remove the rail may be an issue. I'd wager that KAC would recommend the barrel extension wrench method. Hope to hell they stand behind their extensions. |
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Posted: 2/17/2021 8:42:09 PM EDT
[#15]
I like the clamping idea and I did go to KAC and they did recommend the KAC barrel extension tool.
It does have the URX3.1 on it so I expect that in order to be able to clamp the barrel properly that damn rail will have to come off as the is the CQB barrel. I appreciate all the details and replies. I am going to have to think this through a bit. What do people think about using the magpul AR clamp/tool that has a fake bolt to engage the barrel for the purpose of trying to remove the hider? |
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Posted: 2/17/2021 10:16:04 PM EDT
[#16]
Quote HistoryQuoted: Hope to hell they stand behind their extensions. I've seen lots of pics of Mod 2 guns wearing non KAC MDs and haven't heard or seen a single case of an extension coming loose, so I'd imagine it's good to go. That being said all of my KAC uppers still have the factory MDs because I am nervous as hell to wrench on them that hard. |
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Posted: 2/17/2021 10:18:42 PM EDT
[#17]
Quote HistoryQuoted: What do people think about using the magpul AR clamp/tool that has a fake bolt to engage the barrel for the purpose of trying to remove the hider? If I was going to change the MD, I'd do it how KAC recommends that way if something goes wrong it's on them and not you. I have both the KAC wrench and the BEV block. IMHO the KAC wrench is a better tool for this job. |
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Posted: 2/18/2021 11:49:52 AM EDT
[#18]
Quote HistoryQuoted: I like the clamping idea and I did go to KAC and they did recommend the KAC barrel extension tool. It does have the URX3.1 on it so I expect that in order to be able to clamp the barrel properly that damn rail will have to come off as the is the CQB barrel. I appreciate all the details and replies. I am going to have to think this through a bit. What do people think about using the magpul AR clamp/tool that has a fake bolt to engage the barrel for the purpose of trying to remove the hider? The lugs on the "fake bolt" are smaller than the E3 bolt lugs so you're going to get some wobble. The barrel extension tool is the best bet, but it is expensive and usually out of stock. For the rocksett, often a good sharp blow to the end of the muzzle device is enough to break the bond, then you should be able to take off the MD with a proper wrench and some elbow grease. |
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Posted: 2/19/2021 8:50:26 PM EDT
[#19]
Make sense, the more I read the more I think that a proper hard blow in a set up clamped or barrel extension lock down would break the silica bond without destroying anything. I am going to think on it some more.
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Posted: 2/19/2021 8:53:29 PM EDT
[#20]
Quote HistoryQuoted: Make sense, the more I read the more I think that a proper hard blow in a set up clamped or barrel extension lock down would break the silica bond without destroying anything. I am going to think on it some more. They won't let him announce it to the public but SxPxDx works for KAC, so he likely knows a little bit about this topic. |
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Posted: 2/19/2021 9:06:41 PM EDT
[#21]
Quoted: The lugs on the "fake bolt" are smaller than the E3 bolt lugs so you're going to get some wobble. The barrel extension tool is the best bet, but it is expensive and usually out of stock. For the rocksett, often a good sharp blow to the end of the muzzle device is enough to break the bond, then you should be able to take off the MD with a proper wrench and some elbow grease. Quoted: They won't let him announce it to the public but SxPxDx works for KAC, so he likely knows a little bit about this topic. I'd ride along on this. |
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Posted: 2/22/2021 8:50:37 PM EDT
[#22]
Quote HistoryQuoted: I'd ride along on this. Thank you all for the input. Does anyone know where to get the KAC tool? Seem like it is out of stock everywhere I look unfortunately. |
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Posted: 2/22/2021 9:23:59 PM EDT
[#23]
Quote HistoryQuoted: Thank you all for the input. Does anyone know where to get the KAC tool? Seem like it is out of stock everywhere I look unfortunately. Check the websites and sign up for In Stock notifications at the major KAC stocking websites, Operation Parts, Brownells, Presample Depot, Rifle Gear, Shooting Surplus. Probably others I am forgetting. Not sure if they all stock the wrench. I know OP does as that's where I bought mine. |
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Posted: 2/23/2021 9:52:18 AM EDT
[#24]
Quote HistoryQuoted: Check the websites and sign up for In Stock notifications at the major KAC stocking websites, Operation Parts, Brownells, Presample Depot, Rifle Gear, Shooting Surplus. Probably others I am forgetting. Not sure if they all stock the wrench. I know OP does as that's where I bought mine. Exactly this. They're in the middle (beginning of the middle?) of production so most likely won't be on shelves for another 30ish days or so. |
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Posted: 2/25/2021 8:56:09 PM EDT
[#25]
Great! Thank you! I think I can wait to do it correctly for this little piece of kit as I have not seen another for sale for a while now.
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