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Posted: 5/15/2022 12:32:55 PM EDT
[#1]
Don't own a 3lug like that but my guess would be to keep the TP on to protect the threads from being exposed to carbon build up, but will be curious to see what the experts have to say on here.
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Posted: 5/15/2022 1:37:15 PM EDT
[#2]
I’ve done it with both without issue. That being said, thread protectors are important and prefer to use mine.
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Posted: 5/15/2022 1:42:31 PM EDT
[#3]
I used rocksett on my thread protector so I dont have to worry about it coming lose. 3 lug ftw
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Posted: 5/15/2022 1:45:04 PM EDT
[#4]
Install your suppressor without the thread protector..... see how much side to side movement there is
now do it with the thread protector installed |
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Posted: 5/15/2022 3:27:59 PM EDT
[#5]
Leave it on for two reasons: less carbon buildup on the threads, and more support for the spring driven tensioning bushing along its entire inside length. You might be able to feel more wobble without the thread protector to confirm that it’s good practice to leave it on.
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Posted: 5/15/2022 4:00:32 PM EDT
[#6]
Most suppressors for the 9mm HK 3-lug mount use the diameter of the barrel forward of the lugs as the alignment surface, not the back of the lugs. For this reason, alignment is problematic without the thread protector. Some knurled thread protectors are too large to fit in the mount. The OD of the protector should be 0.590-0.591 inches for best results.
Also, on original factory threaded 3-lug barrels, HK says the weapon should not be shot without the thread protector. While this may be German over-engineering or may be related to wall strength over the threads, it is a good idea to prevent dinging the threads if you hit something.. |
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Posted: 5/15/2022 4:07:01 PM EDT
[#7]
I've had an end cap slightly grazed without the thread protector. Never again. (old silencerco 3lug mount)
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Posted: 5/15/2022 4:13:16 PM EDT
[#8]
If I plan on never using the threaded part, then I red loctite on the thread protector. I even had used smooth thread protectors instead of the knurled ones for this application.
But if you don't have a three lug suppressor, then I guess use your thread on suppressor and use the threads. Probably don't care about the thread protector as much in this case. |
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Posted: 5/15/2022 5:23:55 PM EDT
[#9]
Both CGS and Phoenix told me to always run the TP on with their mount/can.
I can't remember if Dead Air told me that too or not. |
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Posted: 5/15/2022 5:43:29 PM EDT
[#10]
Well look at that l was right ??l
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Posted: 5/15/2022 7:32:32 PM EDT
[#11]
Question- I forgot to mention, I have done a range session with the protector on, it loosened during the shoot.
Is this cool? Is there a non-permanent (No Rockset) way to keep it tight? |
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Posted: 5/16/2022 8:54:51 AM EDT
[#12]
idiot question - I just bought a SP5 myself & was trying to research tri lug vs other adaptor(s).
say, would my wolfman pop on to trilug or would i need a different muzzle device? IIRC, i will need the fixed barrel spacer as well, since it’s a fixed barrel. thanks! |
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Posted: 5/16/2022 10:36:32 AM EDT
[#13]
Quote HistoryQuoted: idiot question - I just bought a SP5 myself & was trying to research tri lug vs other adaptor(s). say, would my wolfman pop on to trilug or would i need a different muzzle device? IIRC, i will need the fixed barrel spacer as well, since it’s a fixed barrel. thanks! The Wolfman only comes with a 1/2x28 direct thread adapter, so you would need to buy a 3-lug adapter if you wanted to use the 3-lug mount on the SP5. Fixed barrel spacers are only for use with the booster piston setup, which the Wolfman doesn’t come with. Since the end of the SP5 barrel is threaded 1/2x28, and the included direct thread adapter works fine. |
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Posted: 5/16/2022 1:15:31 PM EDT
[#14]
Is there the possibility of the thread protector coming loose and off the end of the barrel, and getting in the way of the bullet? or is the end of the thread protector close enought on most or all cans to the baffles that they would keep it on the threads?
I need to put a can on my 3 lug at some point with the baffles out, and see what room there is for something bad to happen. |
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Posted: 5/16/2022 2:04:00 PM EDT
[#15]
Quote HistoryQuoted: Is there the possibility of the thread protector coming loose and off the end of the barrel, and getting in the way of the bullet? or is the end of the thread protector close enought on most or all cans to the baffles that they would keep it on the threads? I need to put a can on my 3 lug at some point with the baffles out, and see what room there is for something bad to happen. Is it possible for the TP to loosen? Yes it’s possible in theory, but it seems very unlikely that it would complete unthread itself while inside of the sleeve of the 3 lug adapter. Many people put a little Teflon tape or an O-ring on the threads to keep the TP from getting loose. |
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Posted: 5/18/2022 10:20:56 AM EDT
[#16]
Quote HistoryQuoted: Is it possible for the TP to loosen? Yes it’s possible in theory, but it seems very unlikely that it would complete unthread itself while inside of the sleeve of the 3 lug adapter. Many people put a little Teflon tape or an O-ring on the threads to keep the TP from getting loose. Mine loosens every range session, this is kinda why I am asking about to remove or not. Teflon tape, or Teflon specifically melts at 600 degree's. Any o-ring made of rubber would fair fare less. Is there another option for securing, but not permanently, the TP? |
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Posted: 5/18/2022 10:26:59 AM EDT
[#17]
Quote HistoryQuoted: Mine loosens every range session, this is kinda why I am asking about to remove or not. Teflon tape, or Teflon specifically melts at 600 degree's. Any o-ring made of rubber would fair fare less. Is there another option for securing, but not permanently, the TP? Unless you’re doing full auto dumps, a 9mm isn’t going to get that hot. I use viton O-rings on my SP5 without any issue. |
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Posted: 5/18/2022 2:02:25 PM EDT
[#18]
A drop or two of blue thread locker.
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Posted: 5/21/2022 12:33:30 PM EDT
[#19]
Quote HistoryQuoted: A drop or two of blue thread locker. Sounds like a winner |
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Posted: 5/21/2022 12:50:39 PM EDT
[#20]
Thread on another 3 lug device?
 But in all seriousness, I keep the thread protector on. |
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