.40 to .357 Sig M&P Threaded Shield Conversion Barrel
.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
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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)
  • 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: 20 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 .40 to.357 Sig M&P barrel March 10, 2026
Reviewer: George Rains from Wallace, KS United States  
I really like it simple change no problems easy.

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  0 of 0 people found the following review helpful:
 
5 of 5 M&P 2.0 March 7, 2026
Reviewer: James Strickland from Trenton, NC United States  
Workmanship was better than expected

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  0 of 0 people found the following review helpful:
 
4 of 5 Great looking item October 20, 2025
Reviewer: Roger Watson from Winston Salem, NC United States  
Item was at a great price but doesn’t fit my firearm.

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  0 of 0 people found the following review helpful:
 
5 of 5 40 to 357s August 26, 2025
Reviewer: Cody Kosinski from Plymouth, MA United States  
Highly recommend

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  0 of 0 people found the following review helpful:
 
5 of 5 Easy drop in, nice quality machining August 20, 2025
Reviewer: Ed Underwood from Irving, TX United States  
Dropped it in my Shield 40, fit very well, better than stock 40 barrel. Fitted a comp to the treads and it functions very well.

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