Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
SIG SAUER P229-1 9mm Luger Threaded Barrel
$229.99 $179.99 Save 22%
View Product
Compare (0)
Most Helpful Positive Review 229-1 sig barrel
barrel dropped right in, not 1 issue. as accurate as the original barrel, with a little more speed due to extra length. and who does not like a suppressor option? easy change back and forth from carry to range, if you can clean your gun, you can use this barrel.
Most Helpful Negative Review Barrel needs break in
I installed this barrel on a Sig P229 Legion in 9mm. Initially, the gun would not cycle defensive ammunition, (Federal HST) but ball ammo would cycle. I took it to the range, and ran five-five round magazines of target ammo. Two of those five had a failure to eject the spent casing, but as I cont...
Read More...
Show
Sort by
Filter by

Sig Sauer P229-1 9mm Luger Threaded Barrel

by Sheryl, Verified Owner from MN, United States Written on March 29, 2026
I PURCHASED THIS THREADED BARREL FOR MY SIG SAUER P229-1 PRO 9MM PISTOL AND IT FITS PERFECTLY. I HIGHLY RECOMMEND THIS PRODUCT AND THIS SELLER FOR ALWAYS HAVING EVERYTHING ON HAND THAT I NEED FOR ALL MY FIREARMS. THIS WAS AN AMAZING PURCHASE AND AT THE BEST PRICE I COULD FIND ANYWHERE ONLINE. I'VE PURCHASED SEVERAL PRODUCTS FROM OPTICS PLANET OVER THE LAST SEVERAL MONTHS AND I PLAN ON BEING A LIFELONG CUSTOMER AND I TELL OTHERS ABOUT THE GREAT DEALS I FIND ON THEIR WEBSITE.
Would recommend: Yes
Was it helpful to you? Yes | No

Left hand Threads

by Fryguy, Verified Owner from PA, United States Written on March 22, 2026
Rating is to call attention to the detail that OPTICS PLANET LEFT OUT OF THE DECRIPTION.

The barrel is left hand thread and 13.5mm x1. Not RH and not SAE.

If you are looking for metric LH threads for your P229 this meets your requirements.
Pros:
  • Fits pistol.
Cons:
  • Description was incomplete. Should have specified metric and LH.
Would recommend: No
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Threaded barrel

by Nate, Verified Owner from GA, United States Written on January 18, 2026
Exactly what I was looking for and over $50 cheaper than ordering directly from Sig. Fast shipping and works great!
Would recommend: Yes
Was it helpful to you? Yes | No

Great sig threaded barrel

by Jay, Verified Owner from UT, United States Written on January 7, 2026
Fantastic fit. Factory OEM. Fast shipping from opticsplanet, no issues
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Sig P-229 Threaded Barrel

by Keith, Verified Owner from UT, United States Written on December 30, 2025
My barrel arrived today and I'm VERY disappointed. The package had obviosity been opened and returned by another customer 'the box was torn on the bottom' and was missing instructions or any other kind of documentation from Sig. After trying to remove the thread protector from the barrel by hand, it wouldn't budge, turning it left and right. So thinking it may have some blue thread-lock applied for shipping, I used some heat and pliers and ended up marring up the knurled thread protector. Come to find out that the barrel threads are actually left hand. I don't recall if it said that here on the web site, but I sure wish it would have said that on the packaging. Aside from that, the barrel looks good and the finish is nice. I'll install it and see how it fits.
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

229-1 barrel for caliber conversion

by Baxter, Verified Owner from GA, United States Written on October 30, 2025
So i wanted to do a caliber conversion to 9mm from 40
I purchased a legion 9 slide and this barrel. Very easy and reliable. Be advised the 229 -1 is the one you need a regular 9mm barrel wont work with the locking block
Best Used for:
  • Anyone
  • attaching suppressor or caliber conversion
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Sig barrel

by Jon, Verified Owner from TX, United States Written on April 30, 2025
Awesome barrel perfect fit and works as expected. Dropped in with no fitting on my M11-A1 229.
Best Used for:
  • Supressor
  • Suppression
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

p229 barrel

by Blake, Verified Owner from OK, United States Written on January 24, 2025
Item is exactly as described and fit perfectly into my p-229 legion.
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Works great

by Vortex lover, Verified Owner from KY, United States Written on June 15, 2024
Works great but realize sig uses different thread pitch. May have to have adapter for most suppressors
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Works well for muzzle devices

by Gw, Verified Owner from CO, United States Written on April 6, 2024
Went into my P229-1 legion no problem and has no issues supporting my compensator.
Would recommend: Yes
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?