Magnum Research115675183
Magnum Research Desert Eagle Mark XIX OEM Replacement Barrel 429 DE 6" Black Steel with Fixed Front Sight & Picatinny Rail$483.40
Availability: In Stock
The Magnum Research Desert Eagle Mark XIX 6" stainless steel replacement barrel in .429 DE gives you a way to upgrade or rebuild one of the most iconic handguns ever made. This is the barrel that transforms your Mark XIX platform into a .429 DE shooter—Magnum Research's proprietary cartridge engineered specifically for the Desert Eagle to deliver serious velocity and energy beyond what traditional .44 Magnum can produce. Whether you're refreshing a well-used gun, experimenting with the new cartridge, or building a dedicated .429 DE setup, this is genuine OEM hardware from the manufacturer that designed the round.
The 6-inch length is the classic Desert Eagle barrel profile, offering a balance between sight radius and handling that generations of shooters have trusted. Stainless steel construction resists corrosion and pairs well with the Desert Eagle's industrial aesthetic. The fixed front sight comes ready to aim, and the Picatinny rail on top gives you a standardized mounting point for optics or accessories. The integral muzzle brake helps manage the .429 DE's recoil impulse—important when you're running a cartridge that packs 45% more energy than a .44 Magnum out of a 6-inch barrel.
Installation requires that your Desert Eagle Mark XIX has the wide .830 rail common to current-production US and Israel-made guns, and that it's set up to use 50 AE magazines and bolts—the 429 DE shares that platform. If you own a modern Mark XIX and want to shoot the latest iteration of Desert Eagle performance, this barrel is the straightforward path to get there.
| Caliber | .429 DE (Desert Eagle) |
| Barrel Length | 6 inches |
| Material | Stainless Steel |
| Front Sight | Fixed |
| Top Rail | Picatinny |
| Muzzle Device | Muzzle Brake |
| Platform Compatibility | Magnum Research Mark XIX with wide .830 rail, 50 AE magazines and bolts |
This barrel is compatible with Mark XIX pistols that have the wide .830 rail on top of the barrel and use 50 AE magazines and bolts. This covers modern US and Israel-made Mark XIX models. If you're unsure whether your gun meets these specifications, contact Magnum Research or your dealer to confirm.
No. The .429 DE is a distinct cartridge designed specifically for this new barrel. It is not interchangeable with .44 Magnum or the obsolete .440 COR BON. You'll need to source .429 DE ammunition, which Magnum Research produces in collaboration with HSM and is loaded with Sierra bullets. Standard Desert Eagle caliber ammunition will not work with this barrel.
Yes. The barrel comes with a fixed front sight and an integral muzzle brake already installed.
Barrel swap procedures vary by pistol. We recommend consulting the Desert Eagle manual or a qualified gunsmith if you are unfamiliar with your pistol's take-down process.
SKU: 115661129 • Width: 3.9in • Height: 3.4in • Depth: 12.7in • Weight: 1.5oz
Availability: In Stock
The Magnum Research Desert Eagle Mark XIX 6" stainless steel replacement barrel in .429 DE gives you a way to upgrade or rebuild one of the most iconic handguns ever made. This is the barrel that transforms your Mark XIX platform into a .429 DE shooter—Magnum Research's proprietary cartridge engineered specifically for the Desert Eagle to deliver serious velocity and energy beyond what traditional .44 Magnum can produce. Whether you're refreshing a well-used gun, experimenting with the new cartridge, or building a dedicated .429 DE setup, this is genuine OEM hardware from the manufacturer that designed the round.
The 6-inch length is the classic Desert Eagle barrel profile, offering a balance between sight radius and handling that generations of shooters have trusted. Stainless steel construction resists corrosion and pairs well with the Desert Eagle's industrial aesthetic. The fixed front sight comes ready to aim, and the Picatinny rail on top gives you a standardized mounting point for optics or accessories. The integral muzzle brake helps manage the .429 DE's recoil impulse—important when you're running a cartridge that packs 45% more energy than a .44 Magnum out of a 6-inch barrel.
Installation requires that your Desert Eagle Mark XIX has the wide .830 rail common to current-production US and Israel-made guns, and that it's set up to use 50 AE magazines and bolts—the 429 DE shares that platform. If you own a modern Mark XIX and want to shoot the latest iteration of Desert Eagle performance, this barrel is the straightforward path to get there.
| Caliber | .429 DE (Desert Eagle) |
| Barrel Length | 6 inches |
| Material | Stainless Steel |
| Front Sight | Fixed |
| Top Rail | Picatinny |
| Muzzle Device | Muzzle Brake |
| Platform Compatibility | Magnum Research Mark XIX with wide .830 rail, 50 AE magazines and bolts |
This barrel is compatible with Mark XIX pistols that have the wide .830 rail on top of the barrel and use 50 AE magazines and bolts. This covers modern US and Israel-made Mark XIX models. If you're unsure whether your gun meets these specifications, contact Magnum Research or your dealer to confirm.
No. The .429 DE is a distinct cartridge designed specifically for this new barrel. It is not interchangeable with .44 Magnum or the obsolete .440 COR BON. You'll need to source .429 DE ammunition, which Magnum Research produces in collaboration with HSM and is loaded with Sierra bullets. Standard Desert Eagle caliber ammunition will not work with this barrel.
Yes. The barrel comes with a fixed front sight and an integral muzzle brake already installed.
Barrel swap procedures vary by pistol. We recommend consulting the Desert Eagle manual or a qualified gunsmith if you are unfamiliar with your pistol's take-down process.
SKU: 115661129 • Width: 3.9in • Height: 3.4in • Depth: 12.7in • Weight: 1.5oz