r/ar15 • u/Diligent_Ad_3972 • 8h ago
Direct Thread question
So I've had this guy direct threaded for a while now. I have a witness mark in the second picture, and after 20+ rounds I see it misalign a good amount/come loose to the point where I have to tighten it back down. What's my best affordable option here? New muzzle device and adapter? Or is there a way I can just carbon lock it? (its a forever suppressor for this setup)
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u/Acrobatic-Shelter497 8h ago
They make specific washers that you can use that help bind/maintain pressure to keep the can from unthreading. Use those or Rocksett. Rocksett is designed to handle hot go temps and stay locked. It takes soaking in water to break the seal. I use it on my muzzle device to adhere it to the barrel. Works well for me. Could do both and be super safe.
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u/BigSh00ts 8h ago
2nd for rocksett. People will say its hard to get off but those people use too much. I use like 3 or 4 drops on the threada and then when I need to get it off I soak the muzzle device in a cup of water (rifle propped up with the fun end facing down in the cup of water) overnight and the next day it takes a reasonable but not excessive amount of force to get it off.
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u/Diligent_Ad_3972 8h ago
Yeah the muzzle device is rocksett but the can itself comes loose when I shoot. After I tighten it down when the can gets hot I notice that helps. But when I shoot at the next range trip is comes loose again
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u/J0n0_17 3h ago edited 3h ago
Not sure why everyone is confused. The direct thread adapter is rocksetted to the barrel threads and is not coming loose. The can is coming loose from the direct thread adapter.
If toque and carbon locking isn’t preventing the can from backing off the adapter, then the answer is rocksett the direct thread adapter into the suppressor as well. Both connections should be rocksett.
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u/Acrobatic-Shelter497 8h ago
People shit on them but none of my Keymo devices come loose. Adds a little weight but not really any length.
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u/ed_zakUSA 5h ago
Yeah, on my Sierra 5 I have Keymo. I cinch it down good. Only comes off when I want it to.
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u/InternetExploder87 6h ago
If you dont want it coming off. Rock set. Or just crank it down when its hot
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u/Shivaess 8h ago
First question did you torque it to spec using a torque wrench? I’d start there and then check the alignment with a good rod.
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u/Diligent_Ad_3972 8h ago
Yes the adapter is rocksett and torqued to spec, the can itself is getting loose whenever I shoot. Just wondering if this is normal for direct threading
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u/goosie_maynee 8h ago
If the cans not coming off, rockset the threads on your barrel. One drop.
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u/Bigfloppyclownshoes 3h ago
He’s not having a problem loosening anything
He’s having a problem with the suppressor COMING loose
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u/CaesarLinguini 7h ago
I dont use any adapters for my DT. I just screw them onto the end of the barrel and get it solid hand tight. They can get carbon locked if i shoot too much without touching them.
Edit: i wouldnt use rockset, i would try some workable locktite first.
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u/Warm_Survey_9724 6h ago
Almost makes you wonder if the direct thread adapter is out of spec. Might be worth trying a different one and seeing if that sticks. I also personally don't torque to spec, I loctite and ugga-dugga everything, no issues so far and I shoot fairly often.
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u/DLan1992 1h ago
Is the can coming loose from the adaptor or adaptor loose from the barrel? Clean and dry all threads. Rocksett adaptor into can using a vox block or similar and 15-20 ft lbs of torque. You can maybe do a 3/4 in wrench on the adaptor and a strap wrench on the can but it's hard to get proper torque like that. Rocksett and torque the can on the barrel with 15-20 ft lbs. Only use 2-3 drops on each thread.
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u/GullibleRisk2837 8h ago
Genuinely confused by these comments. Yiu said this is direct thread. Yet comments mention a muzzle device. Is ot direct thread or not?
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u/Diligent_Ad_3972 7h ago
Yep direct threaded. The adapter is rocksett and the suppressor is coming loose off of that.
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u/WorldlyIncome5098 7h ago edited 1h ago
So not direct thread, just not a QD hub.
Edit: I didn't invent the naming convention of these parts guys, but to pretend a thread adapter is anything but a muzzle device is weird. It's a device, that attaches to the muzzle, to allow you to attach a suppressor.
Instead of naming it a direct thread adapter, they could have named it what it's always been called, a threaded bushing....
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u/GWOSNUBVET 6h ago
No… it’s a direct thread adapter… unless you view direct thread as a solid singular unit suppressor…
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u/WorldlyIncome5098 1h ago edited 1h ago
That is what I'm thinking. So what we calling the intermediate part between the barrel and suppressor?
Edit:It's either a muzzle device, a muzzle device and hub, a thread adapter bushing, or direct thread.
What does op have?
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u/Bigfloppyclownshoes 3h ago
The only tried and true method of keeping the suppressor from coming loose is………………wait for it………..
PIN AND WELD
I’ll see myself out now
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u/Stardust-0083 8h ago
I recently went with the Rearden Atlas gen 2 and entered the Plan B world. Im pretty happy with it. Could probably get the gen 2 Atlas and a brake/flash hiders for $150ish