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4/10/2026 4:36:18 PM EDT
[Last Edit: MrWhite227D][Edited]
Posted in ‘sig rifles’ but figured I’d post here also.

Looking for a factory 8” barrel to replace my 4.5” MPX-K barrel, but $800 from sig is crazy. Any source for pulled barrels/trade-ins etc?

Recently there was a dude selling 5 of them in the EE. I waited to long and when I went back to find the ad to buy one the ad has disappeared…

Also I’ve read mixed reviews about ILWT barrels. Any feedback on their accuracy would be great.
4/10/2026 5:11:00 PM EDT
[#1]
Here's where i got mine, great price and fast shipping. Proven is G2G
https://www.provenoutfitters.com/sig-sauer/mpx-g2-8-barrel-9mm-1853
4/10/2026 7:14:12 PM EDT
[#2]
Definitely better than sig direct
4/12/2026 8:21:34 PM EDT
[Last Edit: MrWhite227D][Edited] [#3]
What about any experience with the ILWT barrels? I would be getting the threaded one to direct thread a suppressor
4/12/2026 9:18:25 PM EDT
[#4]
I have an 8” ILWT barrel on mine.  It’s the Navy type with both threading and 3-lug, but I run 3-lug with no issues.
4/12/2026 10:29:45 PM EDT
[#5]
Quote History
Originally Posted By willi3d:
I have an 8” ILWT barrel on mine.  It’s the Navy type with both threading and 3-lug, but I run 3-lug with no issues.
View Quote


How is accuracy? Picky on ammo weight?
4/13/2026 9:37:49 PM EDT
[#6]
Accuracy is OK.  I never fired it with the Sig factory barrel so I can’t compare.  I’ve run it mostly suppressed with 147gr and 150gr, with no issues.
4/15/2026 11:40:44 AM EDT
[#7]
Ditto on the ILWT barrels - I have two and no issues.
4/19/2026 11:22:05 AM EDT
[#8]
I replaced my factory 8in barrel with ILWT 4.5in barrel and I've had no issues with it.  Went short barrel due to suppressing it.
I carry a gun because a cop is too heavy.
5/9/2026 10:06:59 PM EDT
[Last Edit: MrWhite227D][Edited] [#9]
I got a really good deal on a factory 8” barrel, actually from ILWT. Just got lucky and saw it listed 1 in stock a couple weeks ago. Havent shot it yet, but assuming it shoots well I’ll get an 8” handguard and sell the 4.5”.
Let me know if you want a 4.5” and handguard for a good price…
5/15/2026 7:44:23 AM EDT
[#10]
I have a factory 8" barrel that I re-threaded to 1/2-28 ... has performed really well! Its 100% suppressed.
5/15/2026 10:40:04 PM EDT
[#11]
ILWD is GTG.
Being willing to die to complete the mission didn't mean He's a pacifist, just tougher than nails. see also J3:16

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