Magnum Research Desert Eagle Mark XIX OEM Replacement Barrel .357 Mag 6" Black Steel with Fixed Front Sight & Picatinny Rail

The Magnum Research Desert Eagle Mark XIX OEM replacement barrel in .357 Mag gives you a factory-correct way to swap calibers or refresh a worn tube on one of the most iconic handguns ever made. This 6" barrel comes complete with a fixed front sight and integral Picatinny rail, so you're ready to mount optics or accessories right out of the box. Whether you're a serious Desert Eagle collector, a handgun hunter, or just want to run a fresh barrel on your Mark XIX, an OEM replacement ensures fit and function that matches the original design.

Magnum Research manufactures these barrels to the same specs as the factory originals, so installation is straightforward if you're handy, or a gunsmith can swap it in minutes. The 6" length strikes a balance between sight radius and practical carry—long enough for precision work at distance, short enough to remain manageable. Black steel finish matches the classic Desert Eagle look and holds up to regular use.

This barrel is engineered specifically for the Mark XIX platform and chambered in .357 Mag, giving you a potent mid-range option between 9mm and the full magnum cartridges. If you shoot multiple caliber conversions or just want a spare barrel in the safe, an OEM replacement beats aftermarket alternatives for reliability and resale value on a gun this legendary.

Key Features

• Factory OEM specification for Desert Eagle Mark XIX
• Chambered in .357 Mag
• 6" barrel length
• Fixed front sight included
• Integral Picatinny rail for optics and accessories
• Black steel finish

Specifications

Frequently Asked Questions

Will this barrel fit my Desert Eagle Mark XIX?

Yes. This is an OEM replacement barrel manufactured by Magnum Research specifically for the Mark XIX platform.

Does this barrel come with the front sight and rail?

Yes. The barrel includes a fixed front sight and integral Picatinny rail for mounting optics or lights.

What's the difference between this .357 Mag barrel and other Mark XIX caliber options?

The .357 Mag is a mid-power magnum round, offering less recoil than larger magnums while still delivering significant velocity and energy. We carry this barrel in .357 Mag only; other caliber conversions are listed separately.

Can I install this barrel myself?

The Mark XIX uses a straightforward barrel swap design, but the job requires familiarity with your firearm's takedown and reassembly. Many owners do this themselves; others prefer to have a gunsmith handle it. Consult your Desert Eagle manual or a qualified gunsmith if you're unsure.