LCI Compliant .40 to .357 Sig M&P Threaded Shield Conversion Barrel
LCI Compliant .40 to .357 Sig M&P Threaded Shield Conversion Barrel
 
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Our Price: $149.99
NOTE: It is the customer's responsibility to verify the legality of threaded barrel ownership and installation in their location. RemSport Mfg is not responsible for violations of local laws by their customers.

Stock Status:In Stock

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Product Code: BA-P-MPS-40-357CT-CA
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Description
 
Remsport .40 S&W to .357 Threaded Sig Conversion Barrel for the M&P Shield.
  • Designed as a Drop-in Solution, This Barrel Converts Your .40 cal Shield to .357 Sig Without Requiring Fitting.
  • 100% Made in House from Select U.S. Sourced 416 Stainless Steel
  • Precision Broach Cut 1:16LH Twist Rifling
  • CNC Diamond Honed Bore
  • Improved Chamber and Feed Ramp Design for Increased Reliability
  • Barrels are Ferritic-Nitrocarburized (Meloniteā„¢) for an Ultra-Durable Black Finish that is Integral to the Unit's Performance and Function
  • Overall Barrel Length 3.65"
  • Lifetime Warranty on All RemSport Mfg Barrels
  • 1/2"x28 Thread Protector Included (Due to availability, thread protector may vary from photo)
  • Designed to function with models with a loaded chamber indicator, but will function in models without that feature.
  • Compatible with both 1.0 and 2.0 Shields

***All parts must be installed by a competent gunsmith. Some fitting and or tuning may be required. Remsport has no responsibility or liability of the final fit and function of the firearm.***

Due to compliance and restrictions concerns we cannot ship to some locations. Orders made in these cases will be cancelled and refunded if applicable.


Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 8 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 357 sig March 25, 2026
Reviewer: Greg Horning from Myerstown, PA United States  
Fast shipping, perfect in every way. Easy install and amazing quality!

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  0 of 0 people found the following review helpful:
 
4 of 5 Good barrel with adjustment September 2, 2024
Reviewer: William Zack II from Holt, FL United States  
My Shield 2.0 had no trouble operating with this barrel.  No feeding or firing problems.  It shoots left compared to the original 40 S&W barrel.  Adjusted the front sight and started keyholing rounds at 5 yards.  I like being able to carry this cartridge without a whole new purchase of a firearm.

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  0 of 0 people found the following review helpful:
 
5 of 5 40 to ..357 sig bbl February 19, 2024
Reviewer: Anthony Sciullo from Canonsburg, PA United States  
The bbl appears excellent in every way. Can’t wait to shoot it, in fact I want to order another.357 sig bbl!

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  0 of 0 people found the following review helpful:
 
5 of 5 Does what it says on the tin. November 26, 2021
Reviewer: Matt R. from Cranberry Township, PA United States  
Great fit and finish. Fit my Griffin micro comp perfectly. Better groups and less flip. Can't beat the swap back to cheap .40 either. Any way to shoot different calibers from same gun with minimal effort in these parched times is a no brainer.

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  0 of 0 people found the following review helpful:
 
5 of 5 Shield .357 SIG threaded barrel October 31, 2021
Reviewer: Damon Nilsson from Visalia , CA United States  
Hit the range today barrel ran well. Comp went right on it. No complaints here.

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