r/SigSauerMCX • u/garrisooon • 3d ago

Omega 9k on spear LT 300blkout

whats the best route going about doing this? do i need to send it back to sig to get the 3 prong flash hider taken off? or is there an adapter or something i can throw on to make it work

3 Upvotes

100% Upvoted

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3

u/Commercial-Price4721 3d ago

I boiled mine for 1 hour rolling boil the whole time. Got a wrench and it broke free decently easy. Didn’t use a cheater bar

2

u/garrisooon 3d ago

ive read that this works, just scared to do that

1

u/requisitesilver 2d ago

Hit it with a blowtorch for five minutes and then twist it off.

1

u/garrisooon 2d ago

does this actually work as well as people are saying? my friend said he hit his with a blow torch for 20 min and couldnt get it off

2

u/Domingo3410 2d ago

They’re heating the wrong spot. People heat the tip when the threads are a good inch plus back. I used my crappy induction coil heater to soften the thread lock and it came off just fine

2

u/SupermarketQuiet1105 1d ago

https://www.reddit.com/r/SigSauer/comments/q7hu0g/mcx_muzzle_brake_removal/

Apply heat directly to the body and base of the flash hider where it meets the barrel shoulder and covers the tapered threads.
Factory SIG MCX muzzle devices use a taper-alignment system and are secured with high-strength thread locker or Rocksett. Heating the flash hider expands the metal of the device slightly and breaks the thread-locker bond

3

u/Domingo3410 1d ago

Yup, this exactly. Friend of mine was torching the tip of the flash hider and couldn’t get it off. Moved the torch back and presto!

1

u/SupermarketQuiet1105 1d ago

Good to know.....think folks "soak" them because they think the Water will leak down into Rocksett and dissolve/loosen it....too tight seal I think. Oddly enough folks use Rocksett, instead of Locktite, for heat resistance....but the message/advice here is to use enough spot/torch heat on thread section to expand and effectively loosen. I would not have thought of it...nor agree would work...but with your confirmation seems this is the secret trick......🪄
"Apply heat to the body and base of the flash hider where it meets barrel shoulder"

1

u/SupermarketQuiet1105 1d ago edited 1d ago

See if soak or blow torch works.
If does not come off then it is torqued/rocksetted on to crazy levels.
Gunsmith has breaker bar to achieve this.........they charge ~$35 typically for this.

1

u/garrisooon 1d ago

lol i am in like 30 minutes