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S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
S&W M&P Threaded Barrel 9mm 1/2X28
None
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SILENCERCO - S&W M&P Threaded Barrel 9mm 1/2X28

7 Reviews
S&W M&P Threaded Barrel 9mm 1/2X28
Brownells #
100500309
MFR #
AC2023
UPC
816413020531
$143.65
Coupon Code
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International purchase information

Specifications
Item Length (Inches):
4.750
Barrel Style:
Threaded
Barrel Length:
4.75
Make Model Fit:
Smith & Wesson.M&P
Cartridge:
9mm Luger
Color:
Black
Finish:
Matte
Restriction
Threaded Barrel Restriction:
Yes
View US State Restrictions
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International purchase information

What is the SILENCERCO - S&W M&P Threaded Barrel 9mm 1/2X28?

Silencerco’s replacement barrel for the Smith &Wesson M&P comes with a threaded muzzle ready for your favorite suppressor. Available in 9mm for full-size S&W M&P pistols (NOT 5" Pro Series). These barrels are machined from high-grade stainless steel to factory dimensions for an easy, drop-in fit to your M&P. Muzzle threads are compatible with the most popular silencers for each caliber.

  • 9x19mm model: 1-10" RH rifling, ½"-28 threads

The Silencerco S&W M&P threaded replacement barrel easily turns your factory M&P into a suppressor-ready pistol.

Threaded Barrel Restriction: 
Threaded Barrels have restricted shipping to CA.

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S&W M&P THREADED BARRELS REVIEWS

3.6
7 Reviews
5 Stars
43%
4 Stars
29%
3 Stars
0%
2 Stars
0%
1 Stars
29%
Reviews Summary
The reviews for the S&W M&P Threaded Barrels show a mix of experiences. Many customers appreciate the fit and function, especially when it works seamlessly with their firearms. However, others face significant issues with fitting, leading to frustrations with returns and partial refunds.
What Reviewers Are Saying
Fit and Functionality
57%
Several reviewers praise the fit and performance of the threaded barrels, enjoying how they function properly with certain models, especially the M&P 9 2.0. However, the experience varies significantly, as others indicate compatibility issues that prevent proper fitting.
Customer Service and Returns
43%
A number of customers experienced difficulties in the return process or dissatisfaction with customer service, particularly concerning refunds or replacement products that still did not meet expectations.
5
Product acessment
Excellent fit and function, accuracy all good.
Would you recommend this? Yes, I would recommend to a friend
by MICHAEL HARDISON on June 03, 2026
Verified Purchase
Was this review helpful? 0
5
Top Quality
Got this threaded barrel for my M&P 9mm. Dropped in and works fine with a suppressor attached! Bore of this barrel is perfect, no chatter or other imperfections.
Would you recommend this? Yes, I would recommend to a friend
by Ohio Shooter on July 22, 2025
Verified Purchase
Was this review helpful? 0
5
Great barrel
Dropped in easily as a replacement for M&P 9 2.0 - 4.25" unthreaded barrel. Accuracy/grouping atleast on par with OEM barrel, might be slightly better at 10m
by Maiti on March 10, 2024
Verified Purchase
Was this review helpful? 1
4
A fine threaded barrel, but does not fit all S&W M&P9 pistols
I have multiple models of the S&W M&P9 pistol. I found that the extractor of the M&P9 Metal impedes this barrel from going completely into battery and, therefore, is not suitable for the M&P9 Metal. I fits and works great in the M&P9 2.0 with accuracy commensurate with the OEM barrel. Recommend a light application of Locktite 242 (blue removable) to the threads as the thread protector nut will become loosened during firing due to bullet rotation torque.
Would you recommend this? Yes, I would recommend to a friend
by MICHAEL BARRINGTON on November 24, 2024
Verified Purchase
Was this review helpful? 3
4
M&P 9 barrel
Great product, solid barrel made from silencer co. I have a M&p 40. This barrel does drop right in and fires just fine. Still collecting data on grouping. So far at 25 yards all in the black for a drop in. No barrel wiggle or slack while slide is forward, loaded or unloaded. Threads fit perfectly on my suppressor. Can't ask for anything more.
by Achilles on April 15, 2017
Was this review helpful? 10
View All 7 Reviews
Customer Questions
38 Questions