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.
Please Enable Your Browser's Cookies Functionality
Cookies are not currently enabled in your browser, and due to this the functionality of our site will be severely restricted.
Web browser based cookies allow us to customize our site for you, save items in your cart,
and provide you with a great experience when shopping OpticsPlanet.
Your privacy is important to us, and any personal information you supply to us is kept strictly confidential.
If you cannot enable cookies in your browser, please contact us — we are always here to help!
JavaScript is blocked by AdBlocker or ScriptBlocker
We're sorry - it looks like some elements of OpticsPlanet are being disabled by your AdBlocker.
Unfortunately we are unable to offer our excellent shopping experience without JavaScript.
Please add "opticsplanet.com" and "https://opl.0ps.us/assets-e2496f14f98/" to whitelist,
or disable AdBlocker for this site (please note that we do NOT feature any annoying ads on this website).
Thanks!
Your Browser is Outdated
Unfortunately, we are unable to provide an excellent shopping experience on your browser because it lacks modern functionality needed for us
to provide a fast, secure, and enjoyable experience. If you cannot upgrade your browser or use an alternative device to visit us,
please contact us at +1-800-504-5897 and we'll be happy to assist you over the phone!
Reviews & Ratings for SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded
— 14 reviews — Page 1
(14 reviews)
SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded
Not a whole lot to say about this barrel other than it's OEM, seems to shoot as well as an OEM barrel ought to (I'm not shooting precision with it so can't weigh in on those fractions of MOA evaluations) and cycles and feeds like it should. I had it in a Flux Raider with a Sig Pro Cut 4.7 slide and ...
Read More...
It’s probably perfect for any other P320. For an X5 Legion, it doesn’t fit. Total waste of time and money for me. Also, Thankfully I was at a range that was also a registered Sig Sauer dealer. The Range Officer told me there that sir had sent out a memo that no other P320 barrels would fit the X5 Le...
Read More...
by
J B,
Verified Owner
from SC, United States
Written on February 12, 2025
Once I received it I knew it was made for my P320. The threaded Barrel fit great and look great. at first I said it was not worth it but now I glad I made the decision to get this item it works and look like a difference Pistol.
Great Item.
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
Bob R,
Verified Owner
from TX, United States
Written on September 21, 2024
I bought the Threaded Sig P320 Full Size Barrel. Both are awesome and as expected to be used to install a compensator or suppressor on the Sig P320 models. CAUTION to purchasers who wish to replace the Sig P320 X-Five Legion "bull barrel" with the full size threaded barrel as it doesn't fit properly. You must find a 3rd party manufacturer for a threaded "bull barrel" for the Legion.
Pros:
Works as advertised and reasonably priced
Cons:
Doesn't replace Bull Barrel in P320 Full Sized X5 Legion
Best Used for:
Compensators or suppressors
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
NM guy,
Verified Owner
from NM, United States
Written on February 22, 2024
Reliable option for a full size 320. Used in a Raider build. Used an M17 first and later a 320 VTAC slide. Few hundred rounds and no problems with the barrel in either slide. Obviously the LCI had to be removed from the M17 slide. Would recommend when pairing with OEM slides.
Would recommend: Yes
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
IronFusion,
Verified Owner
from PA, United States
Written on January 23, 2024
Some expert answer on this or a compensator incorrectly stated the 5.5" barrel is needed for RXP Full-size. There was a half-inch or more barrel length than needed.
Pros:
None
Cons:
Too long for compensator with RXP Full-size
Would recommend: No
0 of 0 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?
by
ecm,
from MO, United States
Written on October 30, 2022
Sig makes nice looking stuff. Just not stuff that functions with cans I guess. As far as I’m concerned might as well have thrown my money down a toilet. The p320 refuses to go back into battery after each shot with can on it.
Pros:
Nice machining
Cons:
function
Best Used for:
Paperweight
Would recommend: No
0 of 20 found the following review helpful.
Was it helpful to you?Yes|No
You said this review was not helpful.
Would you like to change your vote?