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9/15/2026 5:47:57 PM EDT
Hello fellow can owners!


With the purchase of a Scythe Ti on 4473 recently I also purchased the ASR hub and muzzle brake for two rifles.  One rifle is a Remington 700 with white oak custom barrel and threads and the other is a DPMS SASS from the long ago times.  The parts came with little in the way of instructions and I didn't find much other than a specs list at the website.  So I have a couple of questions.

1.) The original brake on the custom 700 was not very difficult to remove.  I used a couple of shim washers to time it and a calibrated "Not quite gorilla tight" to test things out.  Should I just use a torque wrench (ordered) to give it 20 to 35ft/lbs and consider it good or should I absolutely use something like RockSet?  I get that even a little loosening can be a disaster so I am leaning towards a drop or two of the RockSet.  


2.) The DPMS SASS (.308) has a Phantom flash hider on it.  The best that I can tell that damn thing is glued, soldered, or pinned in place.  It is NOT coming lose.  Not with percussion, gentle heating with hot air gun, or anything approaching normal force.  Does anyone know if these were for some reason pinned or soldered?  If so, what are the chances of getting it off the threads or am I going to just need to have it cut, threaded and re-crowned?  The latter is not something I like the idea of.  It's been a damn good shooter and I hate messing with an already accurate barrel.  

The goal was to be able to swap it onto several rifles and I'm planning to add the system to some of my 5.56 rifles as well.  It's going to be my only can for a while and I want to retain the other rifles with brakes or FH when it's not mounted so I liked this system.
9/15/2026 6:07:06 PM EDT
[#1]
1. Use Rocksett

2. Soak in water 2-3 hours, as it likely has Rocksett applied. Should cone off with normal force.
9/15/2026 6:21:27 PM EDT
[#2]
Thanks.  I'll pick some up.  Seems like cheap insurance.

I can give it a whirl on #2 but I can't recall hearing about that stuff in the pre-2010's.  I'll be happy if that's the ticket because the other options seem less enjoyable to deal with.
9/15/2026 6:31:38 PM EDT
[#3]
It had been a LONG time since I took the muzzle device off my old school DPMS but I think that rifle was the reason I have a 3' breaker bar now
9/15/2026 8:32:10 PM EDT
[#4]
Forget the heat gun. Break out the propane or MAPP torch. I've had to remove muzzle devices for friends that were Rocksett in place. Soak in boiling water, heat with the torch, off it comes. Seems like the heat turns the water into steam which dissolves the Rocksett.
9/16/2026 12:09:46 PM EDT
[#5]
I'm of the opinion that just torque for the muzzle device to barrel is fine.  But the mount into the can's threads can usually use something, those are harder to get torqued to spec and can sometimes need help.
The plane flew, admit you're wrong and get over it.
9/16/2026 1:30:30 PM EDT
[Last Edit: FRT][Edited] [#6]
Gentle heating with hot air gun?  It's steel, not vinyl.  Break out the propane torch and get it nice and toasty, then stick a flathead screwdriver into the tines of the flash hider and crank it off.  But make sure it's not pinned first, if you aren't 100% sure.
9/17/2026 10:37:02 AM EDT
[#7]
Quote History
Originally Posted By FRT:
Gentle heating with hot air gun?  It's steel, not vinyl.  Break out the propane torch and get it nice and toasty, then stick a flathead screwdriver into the tines of the flash hider and crank it off.  But make sure it's not pinned first, if you aren't 100% sure.
View Quote


Well, its a hot-air soldering gun so not exactly a hair drier and it was 'sear a steak' hot but I can't get it red or anything with that.   I can't see any evidence of a pin in it.  There seems to be some indication that it could be RockSett based on some forum posts.  It was purchased long after the AWB sunset but not sure of its production date.

May be a good excuse to pick up a nice torch anyway :D
9/17/2026 1:14:29 PM EDT
[#8]
Quote History
Originally Posted By hushpuppy26:


Well, its a hot-air soldering gun so not exactly a hair drier and it was 'sear a steak' hot but I can't get it red or anything with that.   I can't see any evidence of a pin in it.  There seems to be some indication that it could be RockSett based on some forum posts.  It was purchased long after the AWB sunset but not sure of its production date.

May be a good excuse to pick up a nice torch anyway :D
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By hushpuppy26:
Originally Posted By FRT:
Gentle heating with hot air gun?  It's steel, not vinyl.  Break out the propane torch and get it nice and toasty, then stick a flathead screwdriver into the tines of the flash hider and crank it off.  But make sure it's not pinned first, if you aren't 100% sure.


Well, its a hot-air soldering gun so not exactly a hair drier and it was 'sear a steak' hot but I can't get it red or anything with that.   I can't see any evidence of a pin in it.  There seems to be some indication that it could be RockSett based on some forum posts.  It was purchased long after the AWB sunset but not sure of its production date.

May be a good excuse to pick up a nice torch anyway :D


Yes, get a torch! I replaced the flash hider on one of my store bought uppers a while back, the bastard that built it used RED Lock-tite! 🤬 ended up accidentally unscrewing the barrel from the extension.  Still salty about that. Be careful.
Yesterday 4:21:53 PM EDT
[Last Edit: 3-gun][Edited] [#9]
All my ASR mounts have a dab of red loctite and the proper torque.  If I need to remove just heat it up with a torch and it comes off.   Most anything is good as long as you don’t slather it on, unless you really want it to stay on.
As far as the dpms, I like the idea of soaking in water for a bit then putting a torch on it. A 3’ section of pipe is good too.
" Don't cry, nobody shoots Glocks anymore."

"But the new Admin. is a Master in IDPA"
"MASTER in IDPA..."

"is like C Class in IPSC!"

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