4" .40 to .357 Sig M&P Performance Center Ported Shield Conversion Barrel
4" .40 to .357 Sig M&P Performance Center Ported Shield Conversion Barrel
 
Alternative Views:
Our Price: $159.99

Stock Status:In Stock

Free Shipping
Product Code: BA-P-MPS-4-40-357C-PC
Qty:

Description
 
Remsport 4" .40 S&W to .357 Sig Conversion Barrel for the Performance Center 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 (Melonite™) for an Ultra-Durable Black Finish that is Integral to the Unit's Performance and Function
  • Overall Barrel Length 4.02"
  • Lifetime Warranty on All RemSport Mfg Barrels
  • Compatible with 2.0 4" Shields, Will Not Fit 3.1" Shields
  • Must Be Used In Perfomance Center Ported Slides! Damage Will Occur To Your Firearm If Installed In a NON Ported Slide!

***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.***

Average Rating: Average Rating: 3 of 5 3 of 5 Total Reviews: 2 Write a review »

  0 of 0 people found the following review helpful:
 
4 of 5 Nice product March 15, 2025
Reviewer: Sean P  
Overall quality of the barrel is nice. Polished feed ramp, target muzzle crown, durable matte oxidized finish, fairly accurate, feeds reliably from the 6rd mag. My only issue is that I cannot get it to feed reliably out of the 7rd mag. The nose of the rounds keep getting caught on the feed ramp when using the 7rd mag and the mag must be smacked in order to get the round to feed. It may be possible that it’s an issue with that specific magazine but I am not sure since at the moment I do not have anymore 7rd mags to try. I would still recommend this product to anyone with a shield in .40 S&W.

Was this review helpful to you?

  1 of 1 people found the following review helpful:
 
2 of 5 Feed ramp shorter than factory barrel April 7, 2024
Reviewer: Jesus Gutierrez from Horizon City, TX United States  
The feed ramp on this barrel is shorter than the feed ramp on the factory .40 barrel by about 1 to 1-1/2 mm. This causes the bottom of the bullet nose to hang up on the bottom of the barrel feed ramp. A sharp tap on the bottom of the magazine sends the round in the chamber and the slide forward. I've only tried it with speer gold dot hollowpoint ammunition and the factory S&W magazines are super stiff. To be fair, I need to try other ammunition brands and bullet types. I have also ordered aftermarket magazines. Comparing the factory .40 barrel to the 357 and 9mm conversion barrels I confirmed that the factory barrel has a slightly longer feed ramp. Overall quality is very good and the barrel is accurate. Lockup on the slide is very good as all other dimensions are spot on. I honestly feel that a slightly longer feed ramp would make for a much better, more reliable barrel that would eat whatever you fed it. For now I'm having trust issues.

Was this review helpful to you?