The Beretta PX4 Full Size Barrel (brand part no. JBPX440) is a factory replacement barrel chambered in .40 S&W and finished in a matte black blued coating, built specifically for the PX4 Storm Full Size pistol. It’s a genuine Beretta drop-in barrel, so no gunsmithing or additional fitting is needed to swap it into a Full Size PX4. At 4 inches long, it matches the factory-length barrel and is not threaded, making it the right choice for a shooter replacing a worn or damaged factory barrel rather than adding a suppressor-ready option.

Key Specifications

• Chambered in .40 S&W.
• Fits the Beretta PX4 Storm Full Size pistol.
• 4-inch barrel length, matching the factory Full Size spec.
• Not threaded for a suppressor or muzzle device.
• Drop-in fit, requiring no gunsmithing.
• Finished in matte black blued.

Frequently Asked Questions

Does this barrel require gunsmithing to install? No, it’s a genuine Beretta drop-in barrel for the PX4 Full Size.

Is this barrel threaded? No, it’s a standard, non-threaded factory-length barrel.

What pistol does this fit? The Beretta PX4 Storm Full Size in .40 S&W.

Buy the Beretta PX4 Full Size Barrel in .40 S&W

Replace a worn PX4 barrel with a genuine Beretta drop-in part. Order it from our Beretta lineup, part of our gun parts and accessories selection, at our Lubbock, Texas gun shop as soon as it’s ready to ship.