Welcome to Cheaper Than Dirt! Shop 200,000+ deals on firearms, ammunition, gun parts, survival gear and more. All in stock and ready to ship.

StormLake S&W M&P Compact .40 S&W to 9mm 3.58" Stainless Match Conversion Barrel

Typically ships the same business day when ordered before 4pm CST.
Add To Wishlist Tell A Friend
Can we ship this to you?
Save money on ammo! Convert your Smith & Wesson M&Pc from .40 S&W or .357 SIG into a 9mm by simply switching barrels and using a 9mm magazine.

Machined from certified 416R stainless steel for superior strength, durability, and accuracy. StormLake barrels are match grade, hardened to 40-42 HRC and cut broach rifled to shoot jacketed or lead bullets. All barrels are drop in and will only occasionally require a gunsmith to fit.

Specifications and Features:
.40 S&W to 9mm Luger conversion barrel
416 Stainless Steel
40-42 HRC hardened
Cut broached rifling will shoot jacketed or lead bullets
Full case support

Note: This barrel will only fit the 3.58" barreled .40 S&W or .357 SIG S&W M&Pc 

Item#: GNS-850
Total number of Reviews: 1

Submit a review

5.0 5
"This is a true drop in upgrade barrel for the M&P. I used this barrel to change my 357sig into a 9mm to save on range and reloading costs. Barrel performes flawlessly and NY groups have tightened up as well. Highly recommend this product."